Hi @OA Staff ,
Did this problem appear in all Excel Workbooks or specific Workbooks?
Did you install any updates recently? Did this problem only appear after updating?
I suggest you provide the detail version of Office and Windows you're using.
Then try to test if Word documents have the same problem.
I also suggest you open Excel in safe mode running the following command: Press Win + R, type "excel /safe" in the blank box, press Enter. If it works fine in safe mode, please check the add-ins in your excel and disable them.
You can try to provide more information and I'm glad to help you.
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