: Tools like The Unarchiver are common for handling this format.
Because the file itself is a .7z archive, you need a compatible decompression tool to "look into" it:
When you open a "7z Extra" archive, you will generally find the following components:
: The core engine library used by the standard 7-Zip GUI.
: A standalone version of 7-Zip that handles several formats without needing other files.