File Extension Changer is a tool which allows you to change the extension of files from your computer.
The tool's interface is simple, allowing you to drag and drop the files, or even entire folders containing files, whose extensions you need to change. You can change their extension either by directly clicking on "Change extension(s)" button after you have added files in the list, or by customizing the change conditions by accessing the Advanced Features panel. You can manually specify the old and the new extension of your files by filling in the necessary fields. Nevertheless, the latter mode is recommended for more advanced users.
By default, the new files will be saved in the same folder as the original file or you can define a new path by ticking the "Change Path" box and choosing a new location.
The tool will also allow you to create backup copies of the files that you convert provided that you select this option by ticking the corresponding box from the main window.
To sum up, File Extension Changer is a small tool which can be used by both advanced and beginner users. Its effectiveness is given by the possibility to change the extensions of multiple files in just a few seconds.