When I try to open any excel file stored on my GDrive filestream i get the message:
Excel cannot open the file "xxxx.xlsx" because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.
When I save a new excel file to GDrive I get the message:
The document was saved successfully, but excel cannot re-open it because of a sharing violation. Please close the document and try to open it again.
If i log into Google I can open excel files in Sheets. I can open them in One drive. But I want to be able to use the Microsoft office suite. I've tried many solutions suggested, but they apply to single files - not all files.