It can combine multiple files into a single "solid" block, which is highly efficient for mod packs containing many small text or texture files.
.7z format specification — py7zr – 7-zip archive library Gummy6.7z
The format supports AES-256 encryption , meaning some versions of Gummy6.7z may require a password if they contain private or early-access content. 🛠️ How to Open and Use It It can combine multiple files into a single