: Most commonly LZMA or LZMA2 , which provide 30–70% better compression than standard ZIP.
If this is a custom archive you are creating or examining, a for a typical .7z file would include: 1. File Metadata and Header wxy.7z
: Optional AES-256 encryption to protect the contents with a password. 2. Primary Data Blocks : Most commonly LZMA or LZMA2 , which