In case of renaming multiple file extensions to another, they suggested to type this command in cmd promt or powershell: ren *.(current extension name) *.(new extension name)
But what about to renaming multiple file extensions to nil or no file extension? How to replace this command *.(new extension name) ?
You might have to do a bit of testing as windows may add weird characters, but you could try WSL and use a bash
How to batch rename extensions. Navigate to the folder containing the files you want. Once there, launch command prompt from the folder menu by holding down shift and right clicking on an empty space. Once in command prompt, tiny fishing you can now use the “ren” (for rename) command to rename for example,