The official 7-Zip utility for Windows is the primary tool for opening .7z files.

If found on The Internet Archive, this is likely a piece of a larger collection (e.g., "M" for Magazines, Music, or MAME) compressed for easier distribution.

Both WinZip and WinRAR support extracting 7z archives.

A common choice for macOS users to handle varied compression formats.

To uncover the actual contents and see if there is a narrative or specific data within, you can use the following tools: