Turning On the Display of File Extensions

by Barry Dysert
(last updated May 14, 2018)

Some systems are configured such that file extensions are not displayed. So instead of seeing a file whose name is "Data.txt" you only see "Data". This could get confusing if you have different types of files with the same name, like "Data.txt", "Data.jpg", "Data.xml", etc., as they would all show up simply as "Data". To eliminate such confusion, many users turn on the display of file extensions so that they can see the full name of every file.

To turn on the display of file extensions you need to display the Folder Options dialog box. To do this if you are using Windows 7, open Windows Explorer and on its toolbar click on Tools | Folder Options. If you are using Windows 8 or 10, open the File Explorer and click Options at the right side of the ribbon. Regardless of the version you are using, make sure the View tab is displayed in the dialog box. (See Figure 1.)

Figure 1. The View tab of the Folder Options dialog box.

The Hide Extensions for Known File Types checkbox determines whether the system should hide extensions for known file types. If you put a checkmark in this box, Windows hides the file extensions; this is the default setting for Windows. If the box is clear, then you'll see the full file name. Mark or clear this box to indicate your preference, then click the Apply to Folders button to apply this setting to all folders. When you are done you can click the OK button.

 This tip (12372) applies to Windows 7, 8, and 10.

Author Bio

Barry Dysert

Barry has been a computer professional for over 35 years, working in different positions such as technical team leader, project manager, and software developer. He is currently a software engineer with an emphasis on developing custom applications under Microsoft Windows. When not working with Windows or writing Tips, Barry is an amateur writer. His first non-fiction book is titled "A Chronological Commentary of Revelation." ...

MORE FROM BARRY

Changing a User's Account Type

There are several different account types in Windows. This tip tells you how to change from one account type to another.

Discover More

Opening a File with a Program Other than the Default

Windows determines a program to use with a particular file based on the file's type. If you want to temporarily override ...

Discover More

Using Powercfg to Export and Import a Power Scheme

You can export to a file your power schemes and then import them later on. The only caveat is that you must be running as ...

Discover More
More WindowsTips

Repairing Your System Using a System Repair Disk

If your system gets into a state where it cannot be started normally, this tip presents you with options of how you can ...

Discover More

Sorting a Folder

When you have a lot of files in a folder, it is helpful to be able to know how to sort through all the files. Windows 10 ...

Discover More

Rebuilding the Search Index

There may be times when you want to reset the search index and rebuild it from scratch. This tip tells you how.

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.

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

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 + 1?

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.

Links and Sharing
OUR COMPANY
OUR PRODUCTS
OUR AUTHORS
OUR SITES
 

Copyright © 2020 Sharon Parq Associates, Inc.