A file extension is the three or four letters that come after the period at the end of the name, indicating the file format type. For example, my-notes.txt, my-document.docx, etc. Although extensions are unnecessary after saving the file, it’s another visual queue to identify the file’s format quickly. Also, it makes it easier to change compatible extensions as necessary, such as from .txt to .bat, when you are writing a script or batch file. This guide will teach you the easy steps to show extensions for files while in File Explorer on Windows 11.

How to see file extensions on Windows 11

To view file extensions on Windows 11, use these steps:

Folder Options method

Alternatively, you can also use these steps to show file extensions on Windows 11:

Once you complete the steps, File Explorer will show extensions (for example, .txt, .exe, and .docx) for known file types on Windows 11.

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