Click the three dots icon in the top right corner.If you don't have the permissions required to unlock the file, you can request the user who locked it to unlock it for you. If you use Box Sync, you will also see a lock icon over the file icon in your Box Sync folder. A lock icon to the left of the file's name will indicate that the file has been locked.
You can also choose to prevent users from downloading the file while you are editing it. If you choose unlimited, the file will be locked until you unlock it manually. If another user locks a file, any collaborator with Co-owner, Editor, or Viewer Uploader access can unlock it. Note When you lock a file, you will see a lock icon, but you are still be able to edit the file.
