[Xuzz]

Like this, you mean? https://www.facebook.com/help/?page=116481065103985

It's certainly not a complete copy of everything referencing you in their database, and it only includes information you entered (not friends' details), but it does exist.

[intended]

Doesn't FB keep shadow information as well? Information onpeople who,likely exists, but aren't on FB yet?

So how do those people get their info out?