Lock or unlock office documents/files while editing
With Office Tab, you can lock specific documents or files in Office applications, and it will warn you as below screenshot shown while you are trying to save or close the locked files.
Lock documents/files
To prevent accidentally close or change a file, you can lock the tab within Office Tab.
Right click at the file tab you want to lock, and click Lock from the right-clicking menu to lock the file.
Tip: The √ symbol in the front of Lock in the right-clicking menu means the relative file is locked.
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When you are trying to save or close the locked document, a warning dialog will pop out to remind you.
Click Yes to continue the operation and terminate the locking status, or click No to keep the file being locked and unchanged.
Unlocked documents/files
There are two methods to unlock files.
Method A
Right click at the file to display the context menu, and click Lock again to end the locking status.
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Method B
Right click at the locked file, select Save from the context menu, and then click Yes in the popping warning dialog, and the file has been unlocked.
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Using Tabs in Microsoft Office applications like Firefox, Chrome and IE 10!
