Same.7z

Created and opened by the official 7-Zip utility (open-source).

While native to Windows, it is widely supported on macOS via The Unarchiver and on Linux via the p7zip package. Does 7z compress better than zip? - Microsoft Community Hub same.7z

: It is sometimes used as a stable, generic filename for software images or builds. For example, some developer guides for drone simulation (SITL) images use "same.7z" to refer to a public archive that keeps a stable name even as the content is updated. Created and opened by the official 7-Zip utility