You will need the Reference Data to view the files correctly:
HEREOnce you have them, look for the files in the GameInfo folder which start with:
FrigateTech~~~~~~~~~.ENTITY
and
CAPITALSHIP_TECH~~~~~~~~~~~~~.ENTITY
Each one is a different ship, and inside is where you edit most of their stats, etc. The numbers and references are usually self explanatory. Just change something and test it to see if it works, and what it changes.
As much as we like to see more potential modders, general questions like this, well, are frowned upon, by me anyway. There is now two extensive tutorials available on the downloads page, have a look through them, and get the basics. You will
learn what you are doing them, not just following instructions.
Sorry to come over a bit forward, but recently I've seen numerous 'general' questions that take moments to write, but a lot longer to reply to in any depth.