You can do this by using two easy methods. Select all the files and right-click on the first file. In this case, the first file is Episode 1. Select Rename from the right-click context menu.
If you want to rename all file extensions in a folder or sub-folder at once on Windows 11 or Windows 10 PC, here is how you can do that. You do not need to use a third-party application as you can ...