Rename It is a simple utility designed specifically for new computer users who are just starting out. This program allows you to easily rename a file or a file extension. Rename It is not only for the new user; more experienced users can utilize Rename It to easily rename file extensions that Windows Explorer doesn't support. New version features a Massive Rename which can rename massive of file extension easily. Delete function is also available to both single and massive mode. Rename it can literally save you hours by allowing you to change multiple files extension in one go. On top of that it is very simple to use and has a nice clean interface. It even comes with a help file and full internet support.