From the Web Application
To lock a file from the Box webapp:
Right-click a file (or click the ellipses (...)) to open the More Options menu.
Click Lock
Choose a duration for the lock. If you choose unlimited, the file will be locked until you unlock it manually. You can also choose to prevent users from downloading the file while you are editing it.
A lock icon to the left of the file's name will indicate that the file has been locked. If you use Box Sync, you will also see a lock icon over the file icon in your Box Sync folder.
To unlock a file from the Box webapp:
Right-click a file (or click the ellipses (...)) to open the More Options menu.
Click Unlock
From Your Desktop With Box Sync
You can also lock and unlock files directly from your desktop using Box Sync.
To lock a file, right click on the name of the file in your Box Sync folder, navigate to Box Sync, and select Lock. A lock icon will appear over the file icon to indicate that the file has been locked.
When you lock a file from your desktop, a lock icon indicating that the file is locked will also appear to the left of the file's name in the web application.
Once you have finished your work, simply right click on the name of the locked file, navigate to Box Sync, and select Unlock. If you forget to do so, any other collaborator who has editing capabilities is also able to unlock the file.
If you need to concurrently edit a document, you can use our Office Online integration to collaborate on Microsoft Office documents in real-time. Box Notes and Google Documents can also be edited with others in real-time.