In this post, we’ll see how to change the file extension in Windows 10. Let’s get started.
Change File Extension of an Individual File in Windows 10
Click on the “View” tab in Ribbon and then select “File name extensions.”
Find the file for which you want to change the file extension.
Right-click on it and then click “Rename.”
Remove the file extension which is after the dot (.). Now, type the extension you want and then hit the “Enter” key. In this instance, I removed txt and then entered html.
In the confirmation popup, click “Yes.”
That’s all. You’ve successfully changed the file extension.
Change File Extension of Multiple Files at Once in Windows 10
Put all the files for which you want to change the file extension into a single folder.
Open that folder. Right-click on the File Explorer Address Bar and then click on the “Copy address” option. It’ll copy the address of the folder.
Type cd. Hit the “Space bar” key and then paste the address of the folder you’ve copied (see the screenshot below). Press the “Enter” key.
Now, type the following command: ren *.* *.html
Replace html in the command with the file extension you want. Press the “Enter” key.
That’s it. Now, you can see that all files in the folder got its extension changed.
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