Show File Extension in Windows XP

Users migrating to XP from previous versions of windows may be surprised to see that the file extensions are not shown. Even if you aren’t accustomed to it, it is good practice to show the extension of known files. This tutorial will guide you through the simple steps to show the three letter file extensions.

Open up any folder in windows (I will use My Computer)
Show File Extension in Windows XP

On the menu select Tools > Folder Options.
Show File Extension in Windows XP

The Folder Options Window will be displayed.
Show File Extension in Windows XP

Click the View tab at the top of the window. Scroll down to the option for “Hide extensions for known file types.
Show File Extension in Windows XP

Uncheck the option and then click ok to exit.
Show File Extension in Windows XP

Your files should now display the three letter extensions.
Show File Extension in Windows XP

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