diff --git a/test_io.zarr/.zgroup b/test_io.zarr/.zgroup
deleted file mode 100644
index 3b7daf22..00000000
--- a/test_io.zarr/.zgroup
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_format": 2
-}
\ No newline at end of file
diff --git a/test_io.zarr/dataset_1/.zarray b/test_io.zarr/dataset_1/.zarray
deleted file mode 100644
index d1e9ce06..00000000
--- a/test_io.zarr/dataset_1/.zarray
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "chunks": [
-        2,
-        5
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        2,
-        5
-    ],
-    "zarr_format": 2
-}
\ No newline at end of file
diff --git a/test_io.zarr/dataset_1/.zattrs b/test_io.zarr/dataset_1/.zattrs
deleted file mode 100644
index e80c7834..00000000
--- a/test_io.zarr/dataset_1/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_dtype": "int64"
-}
\ No newline at end of file
diff --git a/test_io.zarr/dataset_1/0.0 b/test_io.zarr/dataset_1/0.0
deleted file mode 100644
index c2388e12..00000000
Binary files a/test_io.zarr/dataset_1/0.0 and /dev/null differ
diff --git a/test_io.zarr/dataset_2/.zarray b/test_io.zarr/dataset_2/.zarray
deleted file mode 100644
index 0353dc7f..00000000
--- a/test_io.zarr/dataset_2/.zarray
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-    "chunks": [
-        4,
-        5
-    ],
-    "compressor": {
-        "blocksize": 0,
-        "clevel": 5,
-        "cname": "lz4",
-        "id": "blosc",
-        "shuffle": 1
-    },
-    "dtype": "<i8",
-    "fill_value": 0,
-    "filters": null,
-    "order": "C",
-    "shape": [
-        4,
-        5
-    ],
-    "zarr_format": 2
-}
\ No newline at end of file
diff --git a/test_io.zarr/dataset_2/.zattrs b/test_io.zarr/dataset_2/.zattrs
deleted file mode 100644
index e80c7834..00000000
--- a/test_io.zarr/dataset_2/.zattrs
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "zarr_dtype": "int64"
-}
\ No newline at end of file
diff --git a/test_io.zarr/dataset_2/0.0 b/test_io.zarr/dataset_2/0.0
deleted file mode 100644
index 768c0ca6..00000000
Binary files a/test_io.zarr/dataset_2/0.0 and /dev/null differ