: The developer strongly recommends creating a backup copy of your files before using the optimizer, as it modifies the archive.

: You can find the tool on the MaxCompress website, which is the primary source for the developer's work.

For standard file compression without third-party optimizers, you can use the official 7-Zip website to download the latest stable version of the core archiver. Ultra7z Optimizer - auto Lzma/Ppmd/Deflate