diff --git a/cellveyor/data.py b/cellveyor/data.py
index 12090cf..f61dcdd 100644
--- a/cellveyor/data.py
+++ b/cellveyor/data.py
@@ -16,7 +16,6 @@ def access_dataframes(spreadsheet_file: Path) -> Dict[str, pandas.DataFrame]:
     name_to_dataframe_dict = pandas.read_excel(spreadsheet_file, sheet_name=None)
     return name_to_dataframe_dict
 
-
 def key_attribute_column_filter(
     sheet_dataframe: pandas.DataFrame,
     key_attribute_name: str,
diff --git a/spreadsheets/example_spreadsheet.xlsx b/spreadsheets/example_spreadsheet.xlsx
new file mode 100644
index 0000000..e933f72
Binary files /dev/null and b/spreadsheets/example_spreadsheet.xlsx differ
diff --git a/tests/test_data.py b/tests/test_data.py
index 823cb5b..097feb3 100644
--- a/tests/test_data.py
+++ b/tests/test_data.py
@@ -8,10 +8,8 @@
 
 
 def test_access_dataframes() -> None:
-    spreadsheet_file = "spreadsheets/fake_spreadsheet.xlsx"
-    result = data.access_dataframes(spreadsheet_file)
-    expected_sheet1 = pd.DataFrame({'column1': [1, 2, 3], 'column2': ['A', 'B', 'C']})
-    expected_sheet2 = pd.DataFrame({'columnA': [4, 5, 6], 'columnB': ['X', 'Y', 'Z']})
-
-    assert pd.DataFrame.equals(result['Sheet1'], expected_sheet1)
-    assert pd.DataFrame.equals(result['Sheet2'], expected_sheet2)
\ No newline at end of file
+    spreadsheet_file_one = "spreadsheets/fake_spreadsheet.xlsx"
+    spreadsheet_file_two = "spreadsheets/example_spreadsheet.xlsx"
+    test_one= data.access_dataframes(spreadsheet_file_one)
+    test_two = data.access_dataframes(spreadsheet_file_two)
+    assert test_one != test_two