Rar files are compressed archives.

Internet_media_type  =  "application/x-rar-compressed"
WinRAR is a powerful archive manager, to process RAR and ZIP files.
 You can try WinRAR before buy, its trial version is available in downloads.

"WinRAR" vs "NanoZip"
7z's LZMA algorithm reaches a higher compression ratio than RAR, except for "multimedia" files like .
RAR compression operations are typically slower than compressing the same data with early compression
algorithms like ZIP, but with a moderately better rate of compression.