Extension.rar [FREE]

: RAR generally offers better compression than standard ZIP formats, resulting in smaller file sizes.

: It features robust password protection and security options to protect the contents.

RAR 3.00 User Manual for Archiving | PDF | Computers - Scribd

: RAR supports "recovery records," allowing the archive to be repaired if it becomes slightly corrupted.

Because it is a proprietary format, standard operating systems often lack full native support, though recently added limited built-in extraction.