WinRAR, one of the most popular file compression tools for windows users, is a basic PC application of compression and decompression for all formats of data (files, music, videos, folders, etc.). With WinRAR, the users can reduce the size of documents and upload documents with less time. It can run on almost any versions of Windows, from Windows 95 to Win 7. Besides, it has great compatibility that supports most of file compression formats, such as RAR, 7Z, ACE, ARJ, BZ2, CAB, GZ, ISO, JAR, LZH, TAR and so on. They are the file compression formats that are most frequently-used. WinRAR can set up multiple self-extracting Zip files, which many other similar products do not support.