Hi naufel thiruvangaden,
Thank you for reaching out to Microsoft Q&A forum and for sharing the details of your excel error.
This error is usually caused by corrupted Office files, faulty add-ins, or incomplete updates. You can fix it by following these steps:
Click Repair Now when the error message appears and restart Excel.
If the issue continues, go to Control Panel → Programs → Programs and Features, select Microsoft Office, click Change, and choose Online Repair.
Start Excel in Safe Mode by pressing Win + R, typing excel /safe, and disable all add-ins from File → Options → Add-ins.
Update Microsoft Office from File → Account → Update Options → Update Now.
Run a system file check by opening Command Prompt as Administrator and executing sfc /scannow.
If none of the above works, uninstall and reinstall Microsoft Office.
These steps usually resolve the Excel error and restore normal functionality.