A file with the .7z extension is a compressed archive created using the open-source software. It is similar to a .zip or .rar file but typically offers a higher compression ratio, meaning it can fit more data into a smaller file size.
Unlike standard ZIP files, most operating systems do not have a built-in tool to open .7z files. You will need a third-party application:
: It uses the LZMA (Lempel-Ziv-Markov chain algorithm) method, which reduces size while preserving perfect quality (lossless).