RAR files are a form of compressed archives just like the ZIP files. The compression algorithm used in rar files are more advanced that it can compress the files to even 8 to 30 percent of the zip file format. Hence it is used by many people when they want to save a lot of space in the hard drive or to compress the files before sending it across through the internet.
There are many programs available in the net for working with the rar files. The most popular among them is the WinRAR program that can be used to create rar archives and to open the rar archives. The interface of the WinRAR program is very user friendly and even a novice user can use it efficiently. The algorithm used in rar compression is so advanced that there is no loss when you decompress an archive and the files are returned as the original itself. BitZipper is another program that can be used to open rar files although this program is not designed for that purpose.
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