Hidden Extensions | How do I show hidden file extensions on my computer?

charlesd45's picture

Updated: 8/10/2023

Windows hides file extensions by default, and this sometimes causes problems for people trying to get their POI files and alerts to work. With the extension hidden, they sometimes add an extension and you end up with a file that has a “double extension” (e.g., Cracker Barrel.wav.wav)

To show file extensions in Windows 10 and 11

1) Click on the Windows "Start" Button, then type in "File Explorer Options" in the search bar at the top and select it.

2) Click the View tab on the File Explorer screen. This will open the File Explorer Options window.

Now follow the below step.

  • Remove check mark for “Hide extensions for known file types”

See layout below.

3) After the check mark is removed, click "OK" to save the change.

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