The cause appears to be the use of non-ASCII characters in file names. Microsoft describes it like so: “Any user may be ...

Microsoft is working to resolve a known issue that prevents some users from opening Excel email attachments in the new Outlook client.

When opening Word, Excel, or PowerPoint, if you cannot see the Recent and pinned items on the start screen, here is how to get them back. Whether they are missing in Word, Excel, PowerPoint, or any ...

Have you ever sent an Excel file to a colleague, only to realize they couldn’t open it because of compatibility issues? Or perhaps you’ve spent hours perfecting a spreadsheet, only to see its ...