If you're trying to open a file and it keeps opening the wrong apps, you may need to change your file extension. Here's how you can fix it ...

To show file extensions in Windows, open the File Explorer. Click View on the menu ribbon at the top, and check the box next to File name extensions. To change a file extension, right-click a file ...

How do I change the file extension for all files in a folder? To change the file extension for all files in a folder, in Windows 7, click on the Organize button and then click Folder and search ...

We show you how to change a file extension in Windows 10 using some File Explorer tweaks and a simple rename.

Learn how to rename files or folders in Windows 11/10 using Command Prompt, PowerShell, Context Menu, Home Menu in Explorer, Keyboard Shortcut, etc.

Here are four ways to show file extensions in Windows 11. You can view file types like PDF, PNG, ZIP, etc., and open them with a suitable app.

On Windows 11, you can change the format of a file in multiple ways through File Explorer, Command Prompt, and from a compatible application. In this guide, I'll show you how.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.

The good news is you can copy file names just like normal text within Windows Explorer. However, if you want to also copy the file extension, you need to display the hidden extension first.