Unlocking Files
While you are editing a file, the file remains locked and others cannot
      edit it. If other people have the file opened, you will see their avatars on the right side of
      the Files box. You can hover over an avatar to see the name of the
      person. If someone else is currently editing the particular file, you will see a
          
Lock
      icon on the left side of the Files box and that person's avatar on the
      right side of the Files box will have a red border. When a file is
      locked, no one else can edit the file until that person navigates back to the Task Files page, closes the browser,
      or uses the Finalize Review button.
If you remain inactive for more than 10 minutes, the editor switches to read-only mode and the file is unlocked, which means other users have access to edit it. If other users do not start editing the file, or once they are finished and it becomes unlocked, a Resume Editing button will be displayed that can be used to switch back to editing mode. Note that the lock status is automatically refreshed every minute, so if another user unlocks a file, you may not see the status change for a minute unless you refresh the page manually.