diff --git a/doc/how_to/handle_times_files/handle-times-sampling-image.png b/doc/how_to/handle_times_files/handle-times-sampling-image.png
deleted file mode 100644
index 85165fd6c1..0000000000
Binary files a/doc/how_to/handle_times_files/handle-times-sampling-image.png and /dev/null differ
diff --git a/doc/how_to/index.rst b/doc/how_to/index.rst
index dce0298bd1..5d7eae9003 100644
--- a/doc/how_to/index.rst
+++ b/doc/how_to/index.rst
@@ -8,7 +8,6 @@ Guides on how to solve specific, short problems in SpikeInterface. Learn how to.
 
     viewers
     handle_drift
-    handle_times
     analyze_neuropixels
     load_matlab_data
     combine_recordings
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zattrs
deleted file mode 100644
index 6ca8b2639b..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zattrs
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-    "settings": {
-        "return_scaled": true
-    },
-    "spikeinterface_info": {
-        "dev_mode": true,
-        "object": "SortingAnalyzer",
-        "version": "0.101.1"
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zmetadata b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zmetadata
deleted file mode 100644
index e257b6304f..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/.zmetadata
+++ /dev/null
@@ -1,2581 +0,0 @@
-{
-    "metadata": {
-        ".zattrs": {
-            "settings": {
-                "return_scaled": true
-            },
-            "spikeinterface_info": {
-                "dev_mode": true,
-                "object": "SortingAnalyzer",
-                "version": "0.101.1"
-            }
-        },
-        ".zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/noise_levels/.zattrs": {
-            "info": {
-                "class": "spikeinterface.core.analyzer_extension_core.ComputeNoiseLevels",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "chunk_size": 10000,
-                "num_chunks_per_segment": 20,
-                "seed": null
-            }
-        },
-        "extensions/noise_levels/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/noise_levels/noise_levels/.zarray": {
-            "chunks": [
-                32
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<f4",
-            "fill_value": 0.0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                32
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/.zattrs": {
-            "info": {
-                "class": "spikeinterface.postprocessing.principal_component.ComputePrincipalComponents",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "dtype": "float32",
-                "mode": "by_channel_local",
-                "n_components": 3,
-                "whiten": true
-            }
-        },
-        "extensions/principal_components/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_1/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_1/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_10/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_10/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_11/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_11/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_12/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_12/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_13/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_13/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_14/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_14/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_15/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_15/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_16/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_16/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_17/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_17/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_18/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_18/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_19/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_19/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_2/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_2/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_20/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_20/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_21/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_21/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_22/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_22/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_23/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_23/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_24/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_24/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_25/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_25/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_26/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_26/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_27/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_27/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_28/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_28/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_29/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_29/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_3/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_3/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_30/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_30/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_31/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_31/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_32/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_32/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_4/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_4/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_5/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_5/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_6/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_6/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_7/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_7/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_8/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_8/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_model_by_channel_local_9/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "extensions/principal_components/pca_model_by_channel_local_9/.zattrs": {
-            "object": true
-        },
-        "extensions/principal_components/pca_projection/.zarray": {
-            "chunks": [
-                551,
-                3,
-                25
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<f4",
-            "fill_value": 0.0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                551,
-                3,
-                25
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/.zattrs": {
-            "info": {
-                "class": "spikeinterface.qualitymetrics.quality_metric_calculator.ComputeQualityMetrics",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "metric_names": [
-                    "isi_violation",
-                    "nearest_neighbor",
-                    "snr"
-                ],
-                "peak_sign": null,
-                "qm_params": {
-                    "amplitude_cutoff": {
-                        "amplitudes_bins_min_ratio": 5,
-                        "histogram_smoothing_value": 3,
-                        "num_histogram_bins": 100,
-                        "peak_sign": "neg"
-                    },
-                    "amplitude_cv": {
-                        "amplitude_extension": "spike_amplitudes",
-                        "average_num_spikes_per_bin": 50,
-                        "min_num_bins": 10,
-                        "percentiles": [
-                            5,
-                            95
-                        ]
-                    },
-                    "amplitude_median": {
-                        "peak_sign": "neg"
-                    },
-                    "drift": {
-                        "direction": "y",
-                        "interval_s": 60,
-                        "min_num_bins": 2,
-                        "min_spikes_per_interval": 100
-                    },
-                    "firing_range": {
-                        "bin_size_s": 5,
-                        "percentiles": [
-                            5,
-                            95
-                        ]
-                    },
-                    "isi_violation": {
-                        "isi_threshold_ms": 1.5,
-                        "min_isi_ms": 0
-                    },
-                    "nearest_neighbor": {
-                        "max_spikes": 10000,
-                        "n_neighbors": 5
-                    },
-                    "nn_isolation": {
-                        "max_spikes": 10000,
-                        "min_fr": 0.0,
-                        "min_spikes": 10,
-                        "n_components": 10,
-                        "n_neighbors": 4,
-                        "peak_sign": "neg",
-                        "radius_um": 100
-                    },
-                    "nn_noise_overlap": {
-                        "max_spikes": 10000,
-                        "min_fr": 0.0,
-                        "min_spikes": 10,
-                        "n_components": 10,
-                        "n_neighbors": 4,
-                        "peak_sign": "neg",
-                        "radius_um": 100
-                    },
-                    "presence_ratio": {
-                        "bin_duration_s": 60,
-                        "mean_fr_ratio_thresh": 0.0
-                    },
-                    "rp_violation": {
-                        "censored_period_ms": 0.0,
-                        "refractory_period_ms": 1.0
-                    },
-                    "silhouette": {
-                        "method": [
-                            "simplified"
-                        ]
-                    },
-                    "sliding_rp_violation": {
-                        "bin_size_ms": 0.25,
-                        "contamination_values": null,
-                        "exclude_ref_period_below_ms": 0.5,
-                        "max_ref_period_ms": 10,
-                        "min_spikes": 0,
-                        "window_size_s": 1
-                    },
-                    "snr": {
-                        "peak_mode": "extremum",
-                        "peak_sign": "neg"
-                    },
-                    "synchrony": {
-                        "synchrony_sizes": [
-                            2,
-                            4,
-                            8
-                        ]
-                    }
-                },
-                "seed": null,
-                "skip_pc_metrics": false
-            }
-        },
-        "extensions/quality_metrics/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/.zattrs": {},
-        "extensions/quality_metrics/metrics/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/index/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": null,
-            "filters": [
-                {
-                    "id": "vlen-utf8"
-                }
-            ],
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/index/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/quality_metrics/metrics/isi_violations_count/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "<f8",
-            "fill_value": "NaN",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/isi_violations_count/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/quality_metrics/metrics/isi_violations_ratio/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "<f8",
-            "fill_value": "NaN",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/isi_violations_ratio/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/quality_metrics/metrics/nn_hit_rate/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "<f8",
-            "fill_value": "NaN",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/nn_hit_rate/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/quality_metrics/metrics/nn_miss_rate/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "<f8",
-            "fill_value": "NaN",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/nn_miss_rate/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/quality_metrics/metrics/snr/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "<f8",
-            "fill_value": "NaN",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "extensions/quality_metrics/metrics/snr/.zattrs": {
-            "_ARRAY_DIMENSIONS": [
-                "index"
-            ]
-        },
-        "extensions/random_spikes/.zattrs": {
-            "info": {
-                "class": "spikeinterface.core.analyzer_extension_core.ComputeRandomSpikes",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "margin_size": null,
-                "max_spikes_per_unit": 500,
-                "method": "uniform",
-                "seed": null
-            }
-        },
-        "extensions/random_spikes/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/random_spikes/random_spikes_indices/.zarray": {
-            "chunks": [
-                551
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<i8",
-            "fill_value": 0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                551
-            ],
-            "zarr_format": 2
-        },
-        "extensions/templates/.zattrs": {
-            "info": {
-                "class": "spikeinterface.core.analyzer_extension_core.ComputeTemplates",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "nafter": 64,
-                "nbefore": 32,
-                "operators": [
-                    "average",
-                    "std"
-                ]
-            }
-        },
-        "extensions/templates/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/templates/average/.zarray": {
-            "chunks": [
-                7,
-                96,
-                32
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<f8",
-            "fill_value": 0.0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7,
-                96,
-                32
-            ],
-            "zarr_format": 2
-        },
-        "extensions/templates/std/.zarray": {
-            "chunks": [
-                7,
-                96,
-                32
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<f8",
-            "fill_value": 0.0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7,
-                96,
-                32
-            ],
-            "zarr_format": 2
-        },
-        "extensions/waveforms/.zattrs": {
-            "info": {
-                "class": "spikeinterface.core.analyzer_extension_core.ComputeWaveforms",
-                "module": "spikeinterface",
-                "version": "0.101.1"
-            },
-            "params": {
-                "dtype": "<f4",
-                "ms_after": 2.0,
-                "ms_before": 1.0
-            }
-        },
-        "extensions/waveforms/.zgroup": {
-            "zarr_format": 2
-        },
-        "extensions/waveforms/waveforms/.zarray": {
-            "chunks": [
-                138,
-                48,
-                13
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<f4",
-            "fill_value": 0.0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                551,
-                96,
-                25
-            ],
-            "zarr_format": 2
-        },
-        "recording/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "allow_nan": true,
-                    "check_circular": true,
-                    "encoding": "utf-8",
-                    "ensure_ascii": true,
-                    "id": "json2",
-                    "indent": null,
-                    "separators": [
-                        ",",
-                        ":"
-                    ],
-                    "skipkeys": false,
-                    "sort_keys": true,
-                    "strict": true
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "recording_info/.zattrs": {
-            "probegroup": {
-                "probes": [
-                    {
-                        "annotations": {},
-                        "contact_annotations": {},
-                        "contact_plane_axes": [
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ],
-                            [
-                                [
-                                    1.0,
-                                    0.0
-                                ],
-                                [
-                                    0.0,
-                                    1.0
-                                ]
-                            ]
-                        ],
-                        "contact_positions": [
-                            [
-                                -18.0,
-                                -117.1875
-                            ],
-                            [
-                                -18.0,
-                                -92.1875
-                            ],
-                            [
-                                -18.0,
-                                -67.1875
-                            ],
-                            [
-                                -18.0,
-                                -42.1875
-                            ],
-                            [
-                                -18.0,
-                                -17.1875
-                            ],
-                            [
-                                -18.0,
-                                7.8125
-                            ],
-                            [
-                                -18.0,
-                                32.8125
-                            ],
-                            [
-                                -18.0,
-                                57.8125
-                            ],
-                            [
-                                -18.0,
-                                82.8125
-                            ],
-                            [
-                                -18.0,
-                                107.8125
-                            ],
-                            [
-                                0.0,
-                                -129.6875
-                            ],
-                            [
-                                0.0,
-                                -104.6875
-                            ],
-                            [
-                                0.0,
-                                -79.6875
-                            ],
-                            [
-                                0.0,
-                                -54.6875
-                            ],
-                            [
-                                0.0,
-                                -29.6875
-                            ],
-                            [
-                                0.0,
-                                -4.6875
-                            ],
-                            [
-                                0.0,
-                                20.3125
-                            ],
-                            [
-                                0.0,
-                                45.3125
-                            ],
-                            [
-                                0.0,
-                                70.3125
-                            ],
-                            [
-                                0.0,
-                                95.3125
-                            ],
-                            [
-                                0.0,
-                                120.3125
-                            ],
-                            [
-                                0.0,
-                                145.3125
-                            ],
-                            [
-                                18.0,
-                                -117.1875
-                            ],
-                            [
-                                18.0,
-                                -92.1875
-                            ],
-                            [
-                                18.0,
-                                -67.1875
-                            ],
-                            [
-                                18.0,
-                                -42.1875
-                            ],
-                            [
-                                18.0,
-                                -17.1875
-                            ],
-                            [
-                                18.0,
-                                7.8125
-                            ],
-                            [
-                                18.0,
-                                32.8125
-                            ],
-                            [
-                                18.0,
-                                57.8125
-                            ],
-                            [
-                                18.0,
-                                82.8125
-                            ],
-                            [
-                                18.0,
-                                107.8125
-                            ]
-                        ],
-                        "contact_shape_params": [
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            },
-                            {
-                                "radius": 7.5
-                            }
-                        ],
-                        "contact_shapes": [
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle",
-                            "circle"
-                        ],
-                        "device_channel_indices": [
-                            0,
-                            1,
-                            2,
-                            3,
-                            4,
-                            5,
-                            6,
-                            7,
-                            8,
-                            9,
-                            10,
-                            11,
-                            12,
-                            13,
-                            14,
-                            15,
-                            16,
-                            17,
-                            18,
-                            19,
-                            20,
-                            21,
-                            22,
-                            23,
-                            24,
-                            25,
-                            26,
-                            27,
-                            28,
-                            29,
-                            30,
-                            31
-                        ],
-                        "ndim": 2,
-                        "probe_planar_contour": [
-                            [
-                                -38.0,
-                                165.3125
-                            ],
-                            [
-                                -38.0,
-                                -149.6875
-                            ],
-                            [
-                                0.0,
-                                -229.6875
-                            ],
-                            [
-                                38.0,
-                                -149.6875
-                            ],
-                            [
-                                38.0,
-                                165.3125
-                            ]
-                        ],
-                        "shank_ids": [
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            "",
-                            ""
-                        ],
-                        "si_units": "um"
-                    }
-                ]
-            },
-            "recording_attributes": {
-                "channel_ids": [
-                    "1",
-                    "2",
-                    "3",
-                    "4",
-                    "5",
-                    "6",
-                    "7",
-                    "8",
-                    "9",
-                    "10",
-                    "11",
-                    "12",
-                    "13",
-                    "14",
-                    "15",
-                    "16",
-                    "17",
-                    "18",
-                    "19",
-                    "20",
-                    "21",
-                    "22",
-                    "23",
-                    "24",
-                    "25",
-                    "26",
-                    "27",
-                    "28",
-                    "29",
-                    "30",
-                    "31",
-                    "32"
-                ],
-                "dtype": "float32",
-                "is_filtered": true,
-                "num_channels": 32,
-                "num_samples": [
-                    320000
-                ],
-                "properties": {
-                    "channel_names": [
-                        "ch0",
-                        "ch1",
-                        "ch2",
-                        "ch3",
-                        "ch4",
-                        "ch5",
-                        "ch6",
-                        "ch7",
-                        "ch8",
-                        "ch9",
-                        "ch10",
-                        "ch11",
-                        "ch12",
-                        "ch13",
-                        "ch14",
-                        "ch15",
-                        "ch16",
-                        "ch17",
-                        "ch18",
-                        "ch19",
-                        "ch20",
-                        "ch21",
-                        "ch22",
-                        "ch23",
-                        "ch24",
-                        "ch25",
-                        "ch26",
-                        "ch27",
-                        "ch28",
-                        "ch29",
-                        "ch30",
-                        "ch31"
-                    ],
-                    "gain_to_uV": [
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0,
-                        1.0
-                    ],
-                    "group": [
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0,
-                        0
-                    ],
-                    "location": [
-                        [
-                            -18.0,
-                            -117.1875
-                        ],
-                        [
-                            -18.0,
-                            -92.1875
-                        ],
-                        [
-                            -18.0,
-                            -67.1875
-                        ],
-                        [
-                            -18.0,
-                            -42.1875
-                        ],
-                        [
-                            -18.0,
-                            -17.1875
-                        ],
-                        [
-                            -18.0,
-                            7.8125
-                        ],
-                        [
-                            -18.0,
-                            32.8125
-                        ],
-                        [
-                            -18.0,
-                            57.8125
-                        ],
-                        [
-                            -18.0,
-                            82.8125
-                        ],
-                        [
-                            -18.0,
-                            107.8125
-                        ],
-                        [
-                            0.0,
-                            -129.6875
-                        ],
-                        [
-                            0.0,
-                            -104.6875
-                        ],
-                        [
-                            0.0,
-                            -79.6875
-                        ],
-                        [
-                            0.0,
-                            -54.6875
-                        ],
-                        [
-                            0.0,
-                            -29.6875
-                        ],
-                        [
-                            0.0,
-                            -4.6875
-                        ],
-                        [
-                            0.0,
-                            20.3125
-                        ],
-                        [
-                            0.0,
-                            45.3125
-                        ],
-                        [
-                            0.0,
-                            70.3125
-                        ],
-                        [
-                            0.0,
-                            95.3125
-                        ],
-                        [
-                            0.0,
-                            120.3125
-                        ],
-                        [
-                            0.0,
-                            145.3125
-                        ],
-                        [
-                            18.0,
-                            -117.1875
-                        ],
-                        [
-                            18.0,
-                            -92.1875
-                        ],
-                        [
-                            18.0,
-                            -67.1875
-                        ],
-                        [
-                            18.0,
-                            -42.1875
-                        ],
-                        [
-                            18.0,
-                            -17.1875
-                        ],
-                        [
-                            18.0,
-                            7.8125
-                        ],
-                        [
-                            18.0,
-                            32.8125
-                        ],
-                        [
-                            18.0,
-                            57.8125
-                        ],
-                        [
-                            18.0,
-                            82.8125
-                        ],
-                        [
-                            18.0,
-                            107.8125
-                        ]
-                    ],
-                    "offset_to_uV": [
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0,
-                        0.0
-                    ]
-                },
-                "sampling_frequency": 32000.0
-            }
-        },
-        "recording_info/.zgroup": {
-            "zarr_format": 2
-        },
-        "sorting/.zattrs": {
-            "annotations": {},
-            "num_segments": 1,
-            "sampling_frequency": 32000.0
-        },
-        "sorting/.zgroup": {
-            "zarr_format": 2
-        },
-        "sorting/properties/.zgroup": {
-            "zarr_format": 2
-        },
-        "sorting/spikes/.zgroup": {
-            "zarr_format": 2
-        },
-        "sorting/spikes/sample_index/.zarray": {
-            "chunks": [
-                551
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<i8",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "astype": "<i8",
-                    "dtype": "<i8",
-                    "id": "delta"
-                }
-            ],
-            "order": "C",
-            "shape": [
-                551
-            ],
-            "zarr_format": 2
-        },
-        "sorting/spikes/segment_slices/.zarray": {
-            "chunks": [
-                1,
-                2
-            ],
-            "compressor": null,
-            "dtype": "<i8",
-            "fill_value": 0,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                1,
-                2
-            ],
-            "zarr_format": 2
-        },
-        "sorting/spikes/unit_index/.zarray": {
-            "chunks": [
-                551
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "zstd",
-                "id": "blosc",
-                "shuffle": 2
-            },
-            "dtype": "<i8",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "astype": "<i8",
-                    "dtype": "<i8",
-                    "id": "delta"
-                }
-            ],
-            "order": "C",
-            "shape": [
-                551
-            ],
-            "zarr_format": 2
-        },
-        "sorting/unit_ids/.zarray": {
-            "chunks": [
-                7
-            ],
-            "compressor": null,
-            "dtype": "<U2",
-            "fill_value": "",
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7
-            ],
-            "zarr_format": 2
-        },
-        "sorting_provenance/.zarray": {
-            "chunks": [
-                1
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|O",
-            "fill_value": 0,
-            "filters": [
-                {
-                    "id": "pickle",
-                    "protocol": 5
-                }
-            ],
-            "order": "C",
-            "shape": [
-                1
-            ],
-            "zarr_format": 2
-        },
-        "sparsity_mask/.zarray": {
-            "chunks": [
-                7,
-                32
-            ],
-            "compressor": {
-                "blocksize": 0,
-                "clevel": 5,
-                "cname": "lz4",
-                "id": "blosc",
-                "shuffle": 1
-            },
-            "dtype": "|b1",
-            "fill_value": false,
-            "filters": null,
-            "order": "C",
-            "shape": [
-                7,
-                32
-            ],
-            "zarr_format": 2
-        }
-    },
-    "zarr_consolidated_format": 1
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zattrs
deleted file mode 100644
index 3c478a4179..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zattrs
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.core.analyzer_extension_core.ComputeNoiseLevels",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "chunk_size": 10000,
-        "num_chunks_per_segment": 20,
-        "seed": null
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/.zarray
deleted file mode 100644
index 73a88a6837..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        32
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<f4",
-    "fill_value": 0.0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        32
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/0
deleted file mode 100644
index aed502cf20..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/noise_levels/noise_levels/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zattrs
deleted file mode 100644
index bc5de74522..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zattrs
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.postprocessing.principal_component.ComputePrincipalComponents",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "dtype": "float32",
-        "mode": "by_channel_local",
-        "n_components": 3,
-        "whiten": true
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/0
deleted file mode 100644
index a3ed7919c7..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_1/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/0
deleted file mode 100644
index 89b9dc01b4..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_10/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/0
deleted file mode 100644
index bed53c1177..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_11/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/0
deleted file mode 100644
index a11e27851f..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_12/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/0
deleted file mode 100644
index 0225fdbf79..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_13/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/0
deleted file mode 100644
index aea86057df..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_14/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/0
deleted file mode 100644
index 87cfb8a2cb..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_15/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/0
deleted file mode 100644
index 64fcbfec40..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_16/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/0
deleted file mode 100644
index 2a5a07e9d1..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_17/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/0
deleted file mode 100644
index 2490b0755a..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_18/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/0
deleted file mode 100644
index d7b5d47aab..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_19/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/0
deleted file mode 100644
index 76f15996a6..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_2/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/0
deleted file mode 100644
index 477be8884b..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_20/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/0
deleted file mode 100644
index 4092b7a3fb..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_21/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/0
deleted file mode 100644
index 25f614db27..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_22/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/0
deleted file mode 100644
index ebde083d75..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_23/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/0
deleted file mode 100644
index fa9b21b8eb..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_24/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/0
deleted file mode 100644
index f6c43fa396..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_25/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/0
deleted file mode 100644
index 279073824c..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_26/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/0
deleted file mode 100644
index 7412f01792..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_27/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/0
deleted file mode 100644
index 2592fc7b6e..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_28/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/0
deleted file mode 100644
index 51397dd61e..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_29/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/0
deleted file mode 100644
index fb3e58904b..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_3/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/0
deleted file mode 100644
index da631a55da..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_30/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/0
deleted file mode 100644
index 9a79efdca5..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_31/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/0
deleted file mode 100644
index cddd1cad78..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_32/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/0
deleted file mode 100644
index 73b54f73f8..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_4/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/0
deleted file mode 100644
index af2e438bdc..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_5/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/0
deleted file mode 100644
index 886b2a01f1..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_6/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/0
deleted file mode 100644
index f5fc734b4d..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_7/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/0
deleted file mode 100644
index 2ba21bcae2..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_8/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zattrs
deleted file mode 100644
index 94f146c6bb..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "object": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/0
deleted file mode 100644
index d4ef5cd656..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_model_by_channel_local_9/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/.zarray
deleted file mode 100644
index 0b2b6873fa..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/.zarray
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "chunks": [
-        551,
-        3,
-        25
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<f4",
-    "fill_value": 0.0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        551,
-        3,
-        25
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/0.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/0.0.0
deleted file mode 100644
index 507f371867..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/principal_components/pca_projection/0.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zattrs
deleted file mode 100644
index 5b438fb3b9..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zattrs
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.qualitymetrics.quality_metric_calculator.ComputeQualityMetrics",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "metric_names": [
-            "isi_violation",
-            "nearest_neighbor",
-            "snr"
-        ],
-        "peak_sign": null,
-        "qm_params": {
-            "amplitude_cutoff": {
-                "amplitudes_bins_min_ratio": 5,
-                "histogram_smoothing_value": 3,
-                "num_histogram_bins": 100,
-                "peak_sign": "neg"
-            },
-            "amplitude_cv": {
-                "amplitude_extension": "spike_amplitudes",
-                "average_num_spikes_per_bin": 50,
-                "min_num_bins": 10,
-                "percentiles": [
-                    5,
-                    95
-                ]
-            },
-            "amplitude_median": {
-                "peak_sign": "neg"
-            },
-            "drift": {
-                "direction": "y",
-                "interval_s": 60,
-                "min_num_bins": 2,
-                "min_spikes_per_interval": 100
-            },
-            "firing_range": {
-                "bin_size_s": 5,
-                "percentiles": [
-                    5,
-                    95
-                ]
-            },
-            "isi_violation": {
-                "isi_threshold_ms": 1.5,
-                "min_isi_ms": 0
-            },
-            "nearest_neighbor": {
-                "max_spikes": 10000,
-                "n_neighbors": 5
-            },
-            "nn_isolation": {
-                "max_spikes": 10000,
-                "min_fr": 0.0,
-                "min_spikes": 10,
-                "n_components": 10,
-                "n_neighbors": 4,
-                "peak_sign": "neg",
-                "radius_um": 100
-            },
-            "nn_noise_overlap": {
-                "max_spikes": 10000,
-                "min_fr": 0.0,
-                "min_spikes": 10,
-                "n_components": 10,
-                "n_neighbors": 4,
-                "peak_sign": "neg",
-                "radius_um": 100
-            },
-            "presence_ratio": {
-                "bin_duration_s": 60,
-                "mean_fr_ratio_thresh": 0.0
-            },
-            "rp_violation": {
-                "censored_period_ms": 0.0,
-                "refractory_period_ms": 1.0
-            },
-            "silhouette": {
-                "method": [
-                    "simplified"
-                ]
-            },
-            "sliding_rp_violation": {
-                "bin_size_ms": 0.25,
-                "contamination_values": null,
-                "exclude_ref_period_below_ms": 0.5,
-                "max_ref_period_ms": 10,
-                "min_spikes": 0,
-                "window_size_s": 1
-            },
-            "snr": {
-                "peak_mode": "extremum",
-                "peak_sign": "neg"
-            },
-            "synchrony": {
-                "synchrony_sizes": [
-                    2,
-                    4,
-                    8
-                ]
-            }
-        },
-        "seed": null,
-        "skip_pc_metrics": false
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zattrs
deleted file mode 100644
index 12c837b2ab..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "dataframe": true
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zarray
deleted file mode 100644
index c415e5573a..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zarray
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": null,
-    "filters": [
-        {
-            "id": "vlen-utf8"
-        }
-    ],
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/0
deleted file mode 100644
index da5bf7cdfd..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/index/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zarray
deleted file mode 100644
index e55a1bcc01..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<f8",
-    "fill_value": "NaN",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/0
deleted file mode 100644
index ca375476e7..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_count/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zarray
deleted file mode 100644
index e55a1bcc01..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<f8",
-    "fill_value": "NaN",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/0
deleted file mode 100644
index ca375476e7..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/isi_violations_ratio/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zarray
deleted file mode 100644
index e55a1bcc01..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<f8",
-    "fill_value": "NaN",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/0
deleted file mode 100644
index 8b0187961f..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_hit_rate/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zarray
deleted file mode 100644
index e55a1bcc01..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<f8",
-    "fill_value": "NaN",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/0
deleted file mode 100644
index c1723fb179..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/nn_miss_rate/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zarray
deleted file mode 100644
index e55a1bcc01..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<f8",
-    "fill_value": "NaN",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zattrs
deleted file mode 100644
index cc622e7af7..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "_ARRAY_DIMENSIONS": [
-        "index"
-    ]
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/0
deleted file mode 100644
index c0db27bb2e..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/quality_metrics/metrics/snr/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zattrs
deleted file mode 100644
index f56f94ae31..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zattrs
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.core.analyzer_extension_core.ComputeRandomSpikes",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "margin_size": null,
-        "max_spikes_per_unit": 500,
-        "method": "uniform",
-        "seed": null
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/.zarray
deleted file mode 100644
index c332fcfbca..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/.zarray
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "chunks": [
-        551
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        551
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/0
deleted file mode 100644
index eb507d9e37..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/random_spikes/random_spikes_indices/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zattrs
deleted file mode 100644
index 886aab2e41..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zattrs
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.core.analyzer_extension_core.ComputeTemplates",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "nafter": 64,
-        "nbefore": 32,
-        "operators": [
-            "average",
-            "std"
-        ]
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/.zarray
deleted file mode 100644
index a16797eb8c..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/.zarray
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "chunks": [
-        7,
-        96,
-        32
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<f8",
-    "fill_value": 0.0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7,
-        96,
-        32
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/0.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/0.0.0
deleted file mode 100644
index ae8b129833..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/average/0.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/.zarray
deleted file mode 100644
index a16797eb8c..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/.zarray
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "chunks": [
-        7,
-        96,
-        32
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<f8",
-    "fill_value": 0.0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7,
-        96,
-        32
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/0.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/0.0.0
deleted file mode 100644
index c0da6e8fa1..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/templates/std/0.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zattrs
deleted file mode 100644
index 2ecf41bc2e..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zattrs
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-    "info": {
-        "class": "spikeinterface.core.analyzer_extension_core.ComputeWaveforms",
-        "module": "spikeinterface",
-        "version": "0.101.1"
-    },
-    "params": {
-        "dtype": "<f4",
-        "ms_after": 2.0,
-        "ms_before": 1.0
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/.zarray
deleted file mode 100644
index d54f8fde47..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/.zarray
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-    "chunks": [
-        138,
-        48,
-        13
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<f4",
-    "fill_value": 0.0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        551,
-        96,
-        25
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.0
deleted file mode 100644
index 2355a112ac..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.1
deleted file mode 100644
index ac3c870b1d..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.0.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.0
deleted file mode 100644
index 7146932e79..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.1
deleted file mode 100644
index ea7eab0e96..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/0.1.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.0
deleted file mode 100644
index 0330259c72..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.1
deleted file mode 100644
index ad70c90899..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.0.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.0
deleted file mode 100644
index 4e37ad653b..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.1
deleted file mode 100644
index 7da87f0802..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/1.1.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.0
deleted file mode 100644
index 9d49634550..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.1
deleted file mode 100644
index 2d0dddfb09..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.0.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.0
deleted file mode 100644
index 9b71cac6cf..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.1
deleted file mode 100644
index 0ba557de65..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/2.1.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.0
deleted file mode 100644
index 1f18d5cbb2..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.1
deleted file mode 100644
index da96e53183..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.0.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.0
deleted file mode 100644
index 8fa5f5c312..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.1 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.1
deleted file mode 100644
index 604e40af3c..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/extensions/waveforms/waveforms/3.1.1 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/.zarray
deleted file mode 100644
index 196e647523..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/.zarray
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "allow_nan": true,
-            "check_circular": true,
-            "encoding": "utf-8",
-            "ensure_ascii": true,
-            "id": "json2",
-            "indent": null,
-            "separators": [
-                ",",
-                ":"
-            ],
-            "skipkeys": false,
-            "sort_keys": true,
-            "strict": true
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/0
deleted file mode 100644
index a3882d182a..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zattrs
deleted file mode 100644
index 2901f25d41..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zattrs
+++ /dev/null
@@ -1,997 +0,0 @@
-{
-    "probegroup": {
-        "probes": [
-            {
-                "annotations": {},
-                "contact_annotations": {},
-                "contact_plane_axes": [
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ],
-                    [
-                        [
-                            1.0,
-                            0.0
-                        ],
-                        [
-                            0.0,
-                            1.0
-                        ]
-                    ]
-                ],
-                "contact_positions": [
-                    [
-                        -18.0,
-                        -117.1875
-                    ],
-                    [
-                        -18.0,
-                        -92.1875
-                    ],
-                    [
-                        -18.0,
-                        -67.1875
-                    ],
-                    [
-                        -18.0,
-                        -42.1875
-                    ],
-                    [
-                        -18.0,
-                        -17.1875
-                    ],
-                    [
-                        -18.0,
-                        7.8125
-                    ],
-                    [
-                        -18.0,
-                        32.8125
-                    ],
-                    [
-                        -18.0,
-                        57.8125
-                    ],
-                    [
-                        -18.0,
-                        82.8125
-                    ],
-                    [
-                        -18.0,
-                        107.8125
-                    ],
-                    [
-                        0.0,
-                        -129.6875
-                    ],
-                    [
-                        0.0,
-                        -104.6875
-                    ],
-                    [
-                        0.0,
-                        -79.6875
-                    ],
-                    [
-                        0.0,
-                        -54.6875
-                    ],
-                    [
-                        0.0,
-                        -29.6875
-                    ],
-                    [
-                        0.0,
-                        -4.6875
-                    ],
-                    [
-                        0.0,
-                        20.3125
-                    ],
-                    [
-                        0.0,
-                        45.3125
-                    ],
-                    [
-                        0.0,
-                        70.3125
-                    ],
-                    [
-                        0.0,
-                        95.3125
-                    ],
-                    [
-                        0.0,
-                        120.3125
-                    ],
-                    [
-                        0.0,
-                        145.3125
-                    ],
-                    [
-                        18.0,
-                        -117.1875
-                    ],
-                    [
-                        18.0,
-                        -92.1875
-                    ],
-                    [
-                        18.0,
-                        -67.1875
-                    ],
-                    [
-                        18.0,
-                        -42.1875
-                    ],
-                    [
-                        18.0,
-                        -17.1875
-                    ],
-                    [
-                        18.0,
-                        7.8125
-                    ],
-                    [
-                        18.0,
-                        32.8125
-                    ],
-                    [
-                        18.0,
-                        57.8125
-                    ],
-                    [
-                        18.0,
-                        82.8125
-                    ],
-                    [
-                        18.0,
-                        107.8125
-                    ]
-                ],
-                "contact_shape_params": [
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    },
-                    {
-                        "radius": 7.5
-                    }
-                ],
-                "contact_shapes": [
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle",
-                    "circle"
-                ],
-                "device_channel_indices": [
-                    0,
-                    1,
-                    2,
-                    3,
-                    4,
-                    5,
-                    6,
-                    7,
-                    8,
-                    9,
-                    10,
-                    11,
-                    12,
-                    13,
-                    14,
-                    15,
-                    16,
-                    17,
-                    18,
-                    19,
-                    20,
-                    21,
-                    22,
-                    23,
-                    24,
-                    25,
-                    26,
-                    27,
-                    28,
-                    29,
-                    30,
-                    31
-                ],
-                "ndim": 2,
-                "probe_planar_contour": [
-                    [
-                        -38.0,
-                        165.3125
-                    ],
-                    [
-                        -38.0,
-                        -149.6875
-                    ],
-                    [
-                        0.0,
-                        -229.6875
-                    ],
-                    [
-                        38.0,
-                        -149.6875
-                    ],
-                    [
-                        38.0,
-                        165.3125
-                    ]
-                ],
-                "shank_ids": [
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    "",
-                    ""
-                ],
-                "si_units": "um"
-            }
-        ]
-    },
-    "recording_attributes": {
-        "channel_ids": [
-            "1",
-            "2",
-            "3",
-            "4",
-            "5",
-            "6",
-            "7",
-            "8",
-            "9",
-            "10",
-            "11",
-            "12",
-            "13",
-            "14",
-            "15",
-            "16",
-            "17",
-            "18",
-            "19",
-            "20",
-            "21",
-            "22",
-            "23",
-            "24",
-            "25",
-            "26",
-            "27",
-            "28",
-            "29",
-            "30",
-            "31",
-            "32"
-        ],
-        "dtype": "float32",
-        "is_filtered": true,
-        "num_channels": 32,
-        "num_samples": [
-            320000
-        ],
-        "properties": {
-            "channel_names": [
-                "ch0",
-                "ch1",
-                "ch2",
-                "ch3",
-                "ch4",
-                "ch5",
-                "ch6",
-                "ch7",
-                "ch8",
-                "ch9",
-                "ch10",
-                "ch11",
-                "ch12",
-                "ch13",
-                "ch14",
-                "ch15",
-                "ch16",
-                "ch17",
-                "ch18",
-                "ch19",
-                "ch20",
-                "ch21",
-                "ch22",
-                "ch23",
-                "ch24",
-                "ch25",
-                "ch26",
-                "ch27",
-                "ch28",
-                "ch29",
-                "ch30",
-                "ch31"
-            ],
-            "gain_to_uV": [
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0,
-                1.0
-            ],
-            "group": [
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0,
-                0
-            ],
-            "location": [
-                [
-                    -18.0,
-                    -117.1875
-                ],
-                [
-                    -18.0,
-                    -92.1875
-                ],
-                [
-                    -18.0,
-                    -67.1875
-                ],
-                [
-                    -18.0,
-                    -42.1875
-                ],
-                [
-                    -18.0,
-                    -17.1875
-                ],
-                [
-                    -18.0,
-                    7.8125
-                ],
-                [
-                    -18.0,
-                    32.8125
-                ],
-                [
-                    -18.0,
-                    57.8125
-                ],
-                [
-                    -18.0,
-                    82.8125
-                ],
-                [
-                    -18.0,
-                    107.8125
-                ],
-                [
-                    0.0,
-                    -129.6875
-                ],
-                [
-                    0.0,
-                    -104.6875
-                ],
-                [
-                    0.0,
-                    -79.6875
-                ],
-                [
-                    0.0,
-                    -54.6875
-                ],
-                [
-                    0.0,
-                    -29.6875
-                ],
-                [
-                    0.0,
-                    -4.6875
-                ],
-                [
-                    0.0,
-                    20.3125
-                ],
-                [
-                    0.0,
-                    45.3125
-                ],
-                [
-                    0.0,
-                    70.3125
-                ],
-                [
-                    0.0,
-                    95.3125
-                ],
-                [
-                    0.0,
-                    120.3125
-                ],
-                [
-                    0.0,
-                    145.3125
-                ],
-                [
-                    18.0,
-                    -117.1875
-                ],
-                [
-                    18.0,
-                    -92.1875
-                ],
-                [
-                    18.0,
-                    -67.1875
-                ],
-                [
-                    18.0,
-                    -42.1875
-                ],
-                [
-                    18.0,
-                    -17.1875
-                ],
-                [
-                    18.0,
-                    7.8125
-                ],
-                [
-                    18.0,
-                    32.8125
-                ],
-                [
-                    18.0,
-                    57.8125
-                ],
-                [
-                    18.0,
-                    82.8125
-                ],
-                [
-                    18.0,
-                    107.8125
-                ]
-            ],
-            "offset_to_uV": [
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0,
-                0.0
-            ]
-        },
-        "sampling_frequency": 32000.0
-    }
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/recording_info/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zattrs b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zattrs
deleted file mode 100644
index cc21c100cc..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zattrs
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "annotations": {},
-    "num_segments": 1,
-    "sampling_frequency": 32000.0
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/properties/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/properties/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/properties/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/.zgroup b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/.zgroup
deleted file mode 100644
index 3f3fad2d17..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/.zarray
deleted file mode 100644
index 1c25cf5e7e..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/.zarray
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-    "chunks": [
-        551
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": [
-        {
-            "astype": "<i8",
-            "dtype": "<i8",
-            "id": "delta"
-        }
-    ],
-    "order": "C",
-    "shape": [
-        551
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/0
deleted file mode 100644
index c03c5f02da..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/sample_index/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/.zarray
deleted file mode 100644
index 789d9b750d..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/.zarray
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-    "chunks": [
-        1,
-        2
-    ],
-    "compressor": null,
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        1,
-        2
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/0.0
deleted file mode 100644
index 7d1a19767e..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/segment_slices/0.0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/.zarray
deleted file mode 100644
index 1c25cf5e7e..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/.zarray
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-    "chunks": [
-        551
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "zstd",
-        "id": "blosc",
-        "shuffle": 2
-    },
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": [
-        {
-            "astype": "<i8",
-            "dtype": "<i8",
-            "id": "delta"
-        }
-    ],
-    "order": "C",
-    "shape": [
-        551
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/0
deleted file mode 100644
index 8e2c61e7af..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/spikes/unit_index/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/.zarray
deleted file mode 100644
index 68a27db48a..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/.zarray
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-    "chunks": [
-        7
-    ],
-    "compressor": null,
-    "dtype": "<U2",
-    "fill_value": "",
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/0
deleted file mode 100644
index b7c0db7a1d..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting/unit_ids/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/.zarray
deleted file mode 100644
index 30e62fda03..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/.zarray
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-    "chunks": [
-        1
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|O",
-    "fill_value": 0,
-    "filters": [
-        {
-            "id": "pickle",
-            "protocol": 5
-        }
-    ],
-    "order": "C",
-    "shape": [
-        1
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/0
deleted file mode 100644
index 2d7589753e..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sorting_provenance/0 and /dev/null differ
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/.zarray b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/.zarray
deleted file mode 100644
index d5cf751f63..0000000000
--- a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/.zarray
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "chunks": [
-        7,
-        32
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "|b1",
-    "fill_value": false,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        7,
-        32
-    ],
-    "zarr_format": 2
-}
diff --git a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/0.0 b/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/0.0
deleted file mode 100644
index 9ad8e04840..0000000000
Binary files a/examples/tutorials/qualitymetrics/clean_analyzer.zarr/sparsity_mask/0.0 and /dev/null differ