I am CONSTANTLY in Excel to the extent that I may have 4 or 5 workbooks open at once. As well, I am bouncing back and forth between them, Gmail and MS Edge to various sites looking things up. Seems like every day, I click back onto one the Excel sheets only to find out Excel is locked up and nothing can be done any more on any workbook. I end up having to close out of everything and reboot so that I can continue working in Excel.

Does anyone have any ideas as to why this happens and maybe how to get moving again without having to reboot?

Thanks for any ideas.
RR