How to set hidden extensions in win7 system

　How to set the hidden extension name in win7 system? After some systems are installed, their default file settings will hide the file extension. If we need to change the extension, we need to set the display settings for the extension. So how to operate this setting, I will share it with you next.

　 Win7 system hidden extension setting display tutorial

　1. First, click the Start button to open the Control Panel.

　2. Change the view mode to large icons, and then select folder options.

　3. Select the View tab.

　4. Then use the scroll bar on the right.

　5. Find and uncheck Hide extensions for known file types.

　6. After the settings are completed, we can use the rename method to directly change the extension.

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