Can anyone point me to the critical useful posts on Freelancer FL files?

I've been working with using them for quick debugging/testing (e.g., rapid edit of shiparch/system & position/equipment) and I can't seem to find thorough information, although it's pretty obvious some people know the contents pretty well.

I've actually assembled my own notes on savegames from SP, and thought they could be useful to post as a tutorial if I can fill in some blank spots from prior work on them.