This is the free, open-source tool needed to open the file.
In short, it’s a high-compression archive format (using 7-Zip) holding retro gaming content. While the name might seem random, it is often associated with curated ROM sets on platforms like the Internet Archive . happy.7z
Games are typically organized for quick entry into emulators like RetroPie, including essential box art. This is the free, open-source tool needed to open the file
