There are several ways to unlock office computer files:
Method 1: Turn on the computer, find the locked file, right-click on the file, and select "Properties".
In the pop-up window, find the "Security" tab and click to enter.
In the "Security" tab, find the "Edit" button and click to enter.
In the "Security" tab, find the "Add" button and click to enter.
In the pop-up window, enter the username or user group you want to add, and click OK.
In the Security tab, find the username or user group you just added, and click the Edit button.
In the pop-up window, tick the "Full Control" option and click "OK".
Go back to the file properties window and click the "Apply" button to unlock the file.
Method 2: Turn on your computer, find the locked file, right-click on the file and select "Show Info".
In the pop-up window, find the "General" tab and click to enter.
In the "General" tab, find the "Lock" option and uncheck it.
Click on the "Apply" button to unlock the files.
The above are two commonly used methods to unlock files on office computers, and you can choose the appropriate method according to the specific situation.