Use the Unarchiver or similar free utilities from the App Store, as macOS does not support .7z natively. Important Considerations
Locate the .7z file in your downloads, tap it, and select to view the game files. On macOS : File: Mikos_Sexual_Adventure.7z ...
: If you encounter a "Data Error" during extraction, the file may be corrupted. Try redownloading the file or using a repair tool . Use the Unarchiver or similar free utilities from