Displaying File Extensions

by Allen Wyatt
(last updated November 21, 2016)

By default, Windows is configured so that file extensions are not displayed—at least they aren't displayed for extensions that Windows recognizes. So instead of seeing a file whose name is "MyFile.txt," Windows only displays "MyFile." This could get confusing if you have different types of files with the same name, like "MyFile.txt," "MyFile.docx," "MyFile.jpg," etc. Each of these—because Windows recognizes the extension—would be displayed simply as "MyFile."

To eliminate the possibility for confusion, many users change how Windows is configured so that it displays the file extensions. This allows you to see the full name of every file you work with.

To turn on the display of file extensions, follow these steps:

  1. Display the Control Panel.
  2. Click the Appearance and Personalization link.
  3. Click Folder Options (Windows 7 and Windows 8) or File Explorer Options (Windows 10). Windows displays the Folder Options (or File Explorer Options) dialog box.
  4. Make sure the View tab is displayed. (See Figure 1.)
  5. Figure 1. The View tab of the File Explorer Options dialog box.

  6. Clear the Hide Extensions for Known File Types checkbox.
  7. Click OK.

The checkbox in step 5 determines whether the system should hide extensions for known file types. The checkbox is selected by default, so file extensions are not displayed. When you clear it (and then click OK), the extensions are immediately unhidden and you can see full file names.

An interesting tidbit if you are using Windows 10: You can also change the setting by going through the File Explorer. Display a File Explorer window, click the View tab, and then click the Options tool. You see the exact same File Explorer Options dialog box, but this time it is named Folder Options, just as in earlier versions of Windows.

 This tip (12859) applies to Windows 7, 8, and 10.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He  is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Putting Spreadsheet Names in Headers or Footers

One of the things you can add to your page header or footer is the name of your workbook file name. Here's how to make the ...

Discover More

Adding Vertical Lines at the Sides of a Word

Vertical lines are even easier to add around a word than are horizontal lines. There are a variety of methods you can use to ...

Discover More

Monday's Date on Friday's Report

Automatically putting today's date at the top of a report is easy. Putting a different date, automatically, can be more ...

Discover More
More WindowsTips

Changing the Hidden Attribute for a File

Windows maintains a set of attributes that describe and control characteristics of your files. Here's how to change the one ...

Discover More

Removing a File Type Program Association

Removing a file type program association is a task for third-party utilities. You can, however, change the association ...

Discover More

Creating a List of Files in a Directory

Do you need a list of all the files in a directory? It's easy to create if you use the proper command-line commands.

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in WindowsTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is 7 + 6?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


Newest Tips
Subscribe

FREE SERVICE: Get tips like this every week in WindowsTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.