How to display and modify file extensions for Windows 10

How to display and modify file extensions for Windows 10

File extensions that identify the file's format and type. By default, File Extension does not show file extensions in Windows 10. To display file extensions, first, open "File Explorer" in Windows 10 or go to any folder on your computer's hard drive. Then go to the View tab in the ribbon menu above and click to check the "File Name Extensions" box.

Now you can see those hidden file extensions in Windows Explorer. To change the file extension, right-click on the file with the mouse cursor and click on "Rename" from the menu. Now change the file extension as usual. Note that changing the file extension does not change the format of the file.