A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
It could be due to a corruption in the workbook.
Try to repair the workbook and see if it helps.
- In Excel, click on File>Open
- Navigate to the file you want to repair.
- Click on the arrow next to Open, click on Open and Repair and choose the method to recover your workbook.
You may also refer the link below and see if it helps.