7-Zip ZS is an open source data compression and archiving utility for Windows, macOS, and Linux. It is a powerful file archiver with a high compression ratio. It can be used to create and extract archives in 7z, ZIP, GZIP, BZIP2, TAR, and XZ formats. It also offers AES-256 encryption for extra security. 7-Zip ZS supports Windows Shell integration and features advanced features such as self-extracting archives and integration with the Windows shell. It also offers support for the LZMA and LZMA2 compression algorithms, as well as additional features such as Unicode support, solid mode, and advanced options for archive splitting. 7-Zip ZS is free to download and use and is ideal for backing up and compressing files.
Discontinued Last alpha version August 2012 - http://freearc.org/history/changelog_full.htm