Hi,
The error you're facing is known as the "We found a problem with some content" error in Excel.
As per my experience, this error usually occurs when You try opening the Excel file saved on a network-shared drive. But there may be other causes for it too, I'm not 100% sure.
But rest apart, it is very easy to fix this error. I suggest you try the following-
- Try using the Open and Repair utility
- Set Calculation Options to Manual
If this doesn't work for you then please let me know.
You can also refer to this blog for more information on how you can fix the error.
Best Regards.