The proprietary .7z format, especially when using the LZMA2 algorithm, offers significantly smaller archive sizes compared to ZIP, often 30-70% smaller.
7-Zip is a free, open-source file archiver with a high compression ratio, making it an essential utility for Windows users, though it has seen recent security disclosures and faces stiff competition from faster alternatives. 2AC.7z
It supports robust AES-256 encryption, allowing users to encrypt file names and protect data. The proprietary
It acts as a universal archive tool, supporting packing/unpacking of 7z, TAR, ZIP, GZIP, and unpacking many others like RAR, CAB, and DMG. The proprietary .7z format