Nowadays, the capacity of storage units is really huge and they can contain many things. With all the files that these storage units can contain, you are easily lost with the file extensions. Extension Changer of AnalogX can take care of these extension changes. It can work as a standalone software or integrates into Windows Explorer. It is very easy to change the extension of a file or the entire files in a folder tree. It is also possible to undo an action if you make mistakes. It is free and does not require any powerful machine.