I have repeated a Clean Reinstall and Install of Office 365 twice trying to remedy this problem without success.

I have an Excel Workbook file and a Word File saved with password protection. After opening them I can make changes however when I try to save the I get an error window.

"Errors were detected while saving 'Path and file name'.xlsx. Microsoft Excel may be able to save the file by removing or repairing some features. To make the repairs in a new file, click Continue, To cancel saving the file, click Cancel."

After selecting Continue, thinking the file got corrupted, the reply was file not saved.

I tried this Office 365 on a 32 bit system that was upgraded from the Windows 10 preview version without issue. Anyone with suggestions please post as I don't want to install Office 365 at this time.