Pandas indexerror: at least one sheet must be visible

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Pandas IndexError: At least one sheet must be visible

This error occurs when you are trying to read an Excel file using Pandas and there are no visible sheets in the file. This typically happens when all the sheets in the Excel file are hidden.

To fix this error, you can unhide the sheets in the Excel file or specify the sheet name or index to be read.

Example 1: Unhiding sheets

Let’s say you have an Excel file named “data.xlsx” with hidden sheets, and you are using the following code to read the file: 

        import pandas as pd

        data = pd.read_excel('data.xlsx')

To unhide the sheets, you can manually open the Excel file, right-click on the sheet names at the bottom, select “Unhide” from the context menu, and make them visible. Then you can run the code again, and it should read the file without any errors.

Example 2: Specifying the sheet name or index

If you want to read a specific sheet from the Excel file without unhiding all the sheets, you can specify the sheet name or index in the code. For example, let’s say you have a hidden sheet named “Sheet3” in the file. You can modify the code as follows: 

        import pandas as pd

        # Read the 'Sheet3' sheet
        data = pd.read_excel('data.xlsx', sheet_name='Sheet3')

        # or

        # Read the sheet at index 2 (assuming 0-based indexing)
        data = pd.read_excel('data.xlsx', sheet_name=2)

In this case, you don’t need to unhide the other sheets. The code will only read the specified sheet and return the data.

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