Some .7z files are encrypted with AES-256 and will prompt for a password during extraction.
In gaming communities like Nexus Mods , files named after characters (e.g., "Sophie") followed by a version number are often used for distributing character presets, textures, or outfits. Sophie10.7z
You will need a program like 7-Zip (Windows), The Unarchiver (macOS), or PeaZip (Cross-platform) to open it. files named after characters (e.g.