I am guessing that the data is embedded in one of those .dat files with links to .txt files for reporting purposes, like player histories. Unless somebody else comes along who knows more, my only suggestion would be to go to
PlanetOOTP. the place to get the best OOTP Utilities and look through Anderson Utilities. There may be one that would do the conversion; perhaps you might go so far as to e-mail Larry Anderson to ask whether it would work for you (an e-mail link appears on the web site). He's a talented, helpful guy whose work has been highly praised here.