: Use software like WinRAR or 7-Zip to access the contents.
: The actual facial structure (mesh) compatible with the game engine.
For those looking for static assets, high-quality of Kobel are also available on sites like Uniqrenders for use in graphics or thumbnails.
The core purpose of this .zip file is to provide a more realistic "face scan" or "cyberface" than what might be available in a game's base version.