Learn how to batch rename files or change file extension for all files in a folder quickly & easily in Windows. Mass or Bulk rename multiple files.

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.