Archiver 4.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program is included in System Tools. This Mac application is a product of Incredible Bee Ltd.
From the developer:
Archiver is a highly versatile unarchiver that can unpack pretty much any archive you throw at it. o reduce file size, Archiver let's you choose from a palette of high-yielding compression formats. And for that extra bit of squeeze, Archiver ships with its own compression format to shrink photos, images and audio files.
You may want to check out more Mac applications, such as Mail Archiver X, Archive or Archiver - Compress files and folders & extract archives, which might be related to Archiver.
Archivers