.7z (7-Zip Compressed Archive). This indicates multiple files (likely audio tracks) are bundled together and compressed.
To access the content, you will need software capable of unzipping 7-Zip files, such as 7-Zip (Windows) or The Unarchiver (macOS) . Living Marimbas1967.MexicanJoe.7z - FileFactory
This platform is often used for sharing out-of-print, niche, or archival music. or archival music.