How to show or hide file name extensions in Windows Explorer

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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

Summary

A file name extension is a set of characters added to the end of a file name that determine which program should open it. By default, Windows Explorer hides file name extensions in Windows 7 and earlier versions of Windows. However, you can make file name extensions visible. This article describes how to show or hide file name extensions in Windows Explorer. The article also provides an automatic solution that can be used in all Windows platform to show file name extensions.

Resolution

To show file name extensions in Windows Explorer, follow these steps:

For Windows Vista, Windows 7, and Windows Server 2008


  1. Start Windows Explorer, you can do this by opening up any folder.
  2. Click Organize.
  3. Click Folder and search options.
  4. Click the View tab.
  5. Scroll down until you notice Hide extensions for known file types, un-check this line by clicking the check box.

    Note To hide file name extensions, check this line.
  6. Click OK

For Windows 2000, Windows XP, and Windows Server 2003

  1. Start Windows Explorer, you can do this by opening up any folder.
  2. Click Tools, and then click Folder Options.
  3. Scroll down and then click Folder and search options.
  4. Click the View tab.
  5. Scroll down until you notice Hide extensions for known file types, un-check this line by clicking the check box.


    Note To hide file name extensions, check this line.
  6. Click OK

Did this fix the problem?

  • Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.

References

For more information about frequently asked questions related to file names and file name extensions, visit the following Microsoft website:
Properties

Article ID: 865219 - Last Review: Aug 15, 2016 - Revision: 1

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