A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
You dont uninstall/reinstall, you repair
Restart the PC, once fully loaded, repair Office,> Apps & Features>Select Office your version>Modify/Repair, once the repair completes re-test
And the following day after starting the PC if you then hold the ctrl key when starting Excel, to force safe mode, does the problem then re-occur?
Before uninstall/reinstall, I also repair the Office program and restart the PC. When same problem occurs, then I uninstall/reinstall the Office. But same message shown in opening excel file. Interesting thing is- this message shown once a day and not daily, randomly.