Type the file is very much like a file type such as *. exe, *. asp, *. php, *. zip and many other. The development of software technology, then type the file will be more and of course we will be confusing when you find the file type is not known. Type this file shows the type of software used for such as pictures, music, system, word processing and others.
Similarly rar file type that showed that the program file that is used to compress files that have size and consists of more than one file or just one file. To know this file type we can see in the library extension that will help us to explain the function of each type of program files will be used.