General Show or Hide File Name Extensions for Known File Types in Windows 11

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File_name_extensions_banner.png

File name extensions are the set of characters added to the end of files that identifies the file type or format.

File_Name_Extension.png


Extensions for known file types are hidden by default in Windows 11.

This tutorial will show you how to show or hide file name extensions for known file types for your account in Windows 11.


Contents

  • Option One: Show or Hide File Name Extensions for Known File Types from File Explorer Command Bar
  • Option One: Show or Hide File Name Extensions for Known File Types from Folder Options
  • Option Two: Show or Hide File Name Extensions for Known File Types using REG file


EXAMPLE: Show and hide file name extensions for known file types
Show_extensions_for_known_file_types.png
Hide_extensions_for_known_file_types.png






OPTION ONE

Show or Hide File Name Extensions for Known File Types from File Explorer Command Bar


1 Open File Explorer (Win+E).

2 Click/tap on View on the command bar. (see screenshot below)

3 Click/tap on Show.

4 Click/tap on File name extensions to toggle them to show (checked) or hide (unchecked - default).

File_extensions_File_Explorer.png






OPTION TWO

Show or Hide File Name Extensions for Known File Types from Folder Options


1 Open Folder Options.

2 Click/tap on the View tab. (see screenshot below)

3 Check (hide - default) or uncheck (show) Hide extensions for known file types under Files and Folders for what you want, and click/tap on OK.

File_extensions_Folder_Options.png






OPTION THREE

Show or Hide File Name Extensions for Known File Types using REG file


1 Do step 2 (show) or step 3 (hide) below for what you would like to do.


2 Show File Name Extensions for Known File Types

A) Click/tap on the Download button below to download the REG file below, and go to step 4 below.​

Show_extensions_for_known_file_types.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"HideFileExt"=dword:00000000

3 Hide File Name Extensions for Known File Types

This is the default setting.


A) Click/tap on the Download button below to download the REG file below, and go to step 4 below.​

Hide_extensions_for_known_file_types.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"HideFileExt"=dword:00000001

4 Save the .reg file to your desktop.

5 Double click/tap on the downloaded .reg file to merge it.

6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

7 Either refresh (F5) the window or desktop, restart explorer process, sign out and sign in, or restart the computer to apply.

8 You can now delete the downloaded .reg file if you like.


That's it,
Shawn Brink
 

Attachments

  • File_name_extensions.png
    File_name_extensions.png
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  • Hide_extensions_for_known_file_types.reg
    668 bytes · Views: 47
  • Show_extensions_for_known_file_types.reg
    668 bytes · Views: 53
Last edited:
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