Are you talking about Tableau server? or Else are you talking about the development stage?
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We completely do it outside of Tableau. Here are the steps:
You can use Computer Management and connect to the server that is hosting the file. Then you can look at System Tools > Shared Folders > Open Files. Find the file are being asked about in the list on the right. Beside the file name you will see who has it open and the Open Mode (read only; read-write). If they don't need it open any more, you can right click on it there and click Close Session and that one file will be closed for that one user.