1] Microsoft Excel’s Native Repairing Feature When you are trying to open a corrupted Excel file, Microsoft Excel automatically starts file recovery mode and tries to repair the Excel file.

If you're unable to open your Excel file and receive a message that the file is corrupted, try changing Microsoft Excel's Trust Center settings, using Excel's built-in repair tool, or changing the ...

Ensure your Microsoft Excel is updated. If the issue persists, the file could be corrupted, or your software settings may need checking. Try using an Excel repair tool if necessary. A post ...