Hello!
I'm Jen, an independent advisor and a Microsoft user like you. I'd be happy to help you out with this issue.
Try performing an Online Repair and see if it fixes the issue. Follow these steps:
Right-click the Windows Start button.
Select "Apps and Features" on the pop-up menu.
Find and click your Microsoft Office 2016 application in the list.
Select Modify, then "Online Repair" and follow the onscreen instructions.
Once the fix is applied, restart your computer and re-try opening your excel workbook to check if the problem has been resolved.
Let me know if this works. If you have any questions, please let me know and I'd be glad to assist you further.
Thank you and Best Regards!
Jen :)