Final Fantasy XI/Data/
Final Fantasy XI stores it's data in generic named files with a *.DAT extension.
Structure is as follows.
ROM, SUB, FILE
Example:
ROM\0\40.DAT
The game may not use any form of magic or identifying marks in the files to help determine what kind of file it is.
Links (FIX with internal ones later)
NPC Table (Each zone has it's own)
A list of all possible NPCs (Friendly or enemy) that can spawn in a zone.
Dialog Table (Each zone has it's own).
A list of all possible dialog text that can be displayed within a zone.