RAR is a patented file format, which is used for data compression, archiving and packaging. Developer Eugene Rosa, so the full name of RAR is: Rosa Archives. The first public version RAR 1.3 was published in 1993.
brief introduction
In computer science, RAR is a proprietary compression format for file compression and archiving.
source
The name of RAR comes from its author Eugene Rochard, which is the abbreviation of Rochard Archives. Eugene Roshal originally wrote a DOS version of the codec program, and later transplanted it to many platforms, such as WinRAR on the famous Windows platform. Eugene Rochard conditionally released the source code of the decoder, but the encoder is still private.