Extracting payroll data from GP

Hello, Everybody,

I did work with GP a while ago and remembered many tables numbers from there but I'd need to refresh my memory on it now.

I was asked to extract data from the Ms Dynamics GP 2013 and load it into ASCII text files. I'm going to do it via SQL job and SSIS that could be a usual task. I could go through GP figuring out needed tables numbers but if somebody could advise what GP tables could be involved that would be greatly appreciated.