How to Show File Extensions in Windows 10 [DETAILED GUIDE]

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Show File Extension Windows 10

Home » How To » How to Show File Extensions in Windows 10 [DETAILED GUIDE]

Windows 10 by default hides the file extension from the user view in the File Explorer to keep the directory clean. However, at times you may need it to show file extensions to identify the file type. It also helps you in finding the right program to open a file in case Windows is unable to recognize the right program to run the file.

In this article, we have put together multiple methods to show file extension in Windows 10.

How can I see file extensions in Windows 10?

1. Use Windows File Explorer

  1. Open the File Explorer. Click the Folder icon in the taskbar or search for it using the Search bar.
  2. Make sure the Ribbon (top) is maximized, and you can see “File, Home, Share and View” tab.
  3. Click on the View tab.
    File Explorer - View - Show Hide - file Extension
  4. Check “File name Extensions” box under “Show/Hide” section.
  5. Now if you open any folder, you should be able to view the file name followed by the extension for all the files.

2. Show File Extension from Control Panel

  1. Press Windows Key + R.
  2. Type control and press OK.
  3. Click on the Appearance and Personalization tab.
    Control Panel - Personalization and appearances
  4. Click on File Explorer Options.
    File Explorer Options
  5. In the “File Explorer Options” window, click on the View tab.
  6. Under Advanced Settings, scroll down and uncheck the box “Hide extensions for known file types“.
    File Explorer Options - View tab- Show Extension
  7. Click Apply and click OK to save the changes.

Learn more about the incoming File Explorer Tabs feature by reading this piece.

3. Use the Registry Editor

  1. Press Windows Key + R to open Run.
  2. Type regedit and click OK.
  3. In the Registry Editor, navigate to the following key:
    Computer -> HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Explorer -> Advanced
  4. In the right pane look for the “HideFileExt” DWORD value.HideFileExt- Registry Editor
  5. Right-click on “HideFileExt” DWORD and select “Modify”.Edit HideFuleExt - value 0
  6. In the value data, type 0 and click OK.
  7. Close the registry editor and check if the File Extensions are visible in the File Explorer.



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