Running Winshuttle Studio and Excel via Office 365. I get the error message when trying to run a script via the add-in that 'Workbook xxxxx.xlsx is not saved. Please save the Workbook and try again.'
This error normally appears if customer is trying to save on One Drive ; They would need to check with their IT team whether there is any security settings that is not allowing the users to save the files.
Also check the below settings on users machine.
1. Right-click on the One-drive icon and go to settings.(Screenshot attached)
2. Go to Office tab .
3. Uncheck the option "Use Office applications to sync Office files..."
4. Click Ok.
5. Then try running the scenario and let us know the results.
If the above option doesn't work ; Save the script on different location not One Drive and check the result.