L7z Archiver for AmigaOS 4.1 is 100% free archive manager. You can use it on any AmigaOne computer and you don’t have to register or pay anything. L7z Archiver is extremely simple to use, you don’t need comprehensive manuals or guides. Just install it and enjoy. It also works light speed fast even with large archives and many files. The current release is in alpha stage and will be improved in the near future. 7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format supports encryption with the AES algorithm with a 256-bit key. The key is generated from a user-supplied passphrase using an algorithm based on the SHA-256 hash function.