How to View a Computer File Extension

Steps on how to view a computer file extension in all versions of Microsoft Windows and the Windows command line and MS-DOS.

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How to show or hide file extensions in Windows 10 - Tech Advisor

Use the default Windows 10 search function

How do I change the program that opens a type of file on my computer? » Files & Sharing » Windows » Tech Ease

Chrome extension source viewer

Easy] How to Change File Extension in Windows 10 - EaseUS

How to Make Windows Show File Extensions

Easy] How to Change File Extension in Windows 10 - EaseUS

How do I show file extensions in Windows 10?