: You can create archives that open themselves on other computers without requiring the recipient to have 7-Zip installed.

: This allows the software to treat multiple files as a single continuous block, which is much more efficient for compressing groups of similar files.

: It can theoretically handle files up to 16 exbibytes (billions of gigabytes).

How to Install, Compress & Encrypt Files with 7-Zip | Lenovo IN

: It supports AES-256 bit encryption to protect both the file contents and the archive headers (preventing others from even seeing the filenames without a password).