Some Office users have recently experienced “Unknown error trying to lock file” while using Office apps like Excel, Teams, OneDrive, PowerPoint, etc. It’s even ...

If you notice that your Excel files are opening in Notepad, then read this post to learn how to fix the issue. The default behavior of a document or file is to open in the application with which it ...

The cause appears to be the use of non-ASCII characters in file names. Microsoft describes it like so: “Any user may be unable to open Excel files attached to email messages in the new Outlook client ...