It is a compressed archive format known for its high compression ratio (often 30–70% better than ZIP) using the LZMA/LZMA2 algorithm. It is frequently used for large data sets, firmware, or software distributions.
If you don't want to install software, you can use reputable online tools like B1 Online Archiver or Extract.me . Avoid uploading sensitive or private data to online tools. MrC036.7z
: You can also use WinZip to open and extract 7z files if that is your preferred archiver. It is a compressed archive format known for