I can *try* to write stuff in, based on the FS entries. My knowledge consits of reading them (primarily ships and weapons) trying to fix where modders have screwed up and left files out. *glares in Noise's general direction*
I can edit and try to add new entries, but I won't gurantee that it'll work. I've never done much of this before. I can read them without a problem, for the most part, and I ahve somewhat similar experience with reading datafiles, albeit, better formatted ones.