Learn how to rename all file extensions in a folder & sub-folders at once on Windows 11/10. You can batch rename or rename all file extensions in bulk using this guide.

Need to rename a bunch of files in Windows? File Explorer can help. But you’ll find more options with the PowerToys PowerRename tool or a third-party utility.

This new addition, “PowerRename,” gives you a simple method for batch-renaming files within File Explorer. It’s free, easy, and worth the 10 seconds it takes to install on your system.