My boss has a special network folder mapped only to his PC. He keeps a lot of xls and doc files that are for his eyes only. One of the xls files refuses to save, the error message states that the "file is currently in use". No one else has it open, or even has access to it's saved location.
He can still save a copy with "Save As.." but he can't even manually delete the original file afterwards.
I'm thinking it might be a hung process, but I wanted to see if someone here has a solution/explanation. I'm going over to mess with it now, and will check back later to update.