I have an excel file on a shared drive that always gives the same name in the 'Locked by ' dialogue regardless of who actually has it open or who is trying to open it.
example: when BillyBob has the file open excel says BillyBob has it open. When I have the file open the file says BillyBob has it open, and whenever any of my coworkers have the file open it says BillyBob has the file open.
It's only this file that does that. All of the other files in the same shared folder function as normal.