: RAR archives can be password-protected and encrypted using AES-256 (in the current RAR5 version) to secure the data.

What is a .rar file and how do I open it? - Knowledge Base | PreSonus

: It condenses one or more files into a single, smaller "container," making them easier to store or transfer.

: Large files can be split into multiple smaller volumes (e.g., .part1.rar , .part2.rar ), which is useful for bypassing email attachment limits or managing large downloads.

A is a proprietary archive format used for data compression, error correction, and file spanning. The name stands for Roshal Archive , after its creator, Eugene Roshal. Key Features of RAR Files