This problem can crop up if you edit the same file on more than one computer. OneDrive isn’t sure which one to sync as the official file, so it syncs both and appends the computer name to one of them.

I don’t use OneDrive, but Microsoft is hellbent on making sure I do. When you set up a new PC, OneDrive automatically starts syncing files based on the Microsoft account you sign in with. This isn’t ...