How to Hide/Show File Extensions in Window8/8.1

Posted by Britt Duncan - August 15, 2014

File extensions will give you a hint of what the files are used for and what programs can be used to open them. This can help PC users who are not so familiar with Windows avoid deleting system files by mistakes since system files missing may lead to system malfunction. In this post, steps to hide/show file extensions in Windows 8/8/1 will be introduced.

Step one: Open up This PC or Computers on the desktop. At the top of File Explorer, move to view tab.


Step two: At the show/hide column, tick or tick off the check-box before file name extensions to show/hide the file extensions respectively.


Alternatively, you can also access Folder Options by searching in the search box in Windows.


Move to View tab and scroll down the Advanced settings list. Locate Hide extensions for known file types option.


To hide the file extensions, mark the check-box before it. Accordingly, if you change your mind and want to show the file name extension again, simply tick off the check-mark before this option. At last, don’t forget to click Apply and then OK to apply the change.


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TESTED:  25 Jun