[Therion] OFFTOPIC: how to get geographic coordinates (LAT/LONG) of all stations of a centerline?

Hi, I know this question is offtopic but I could not think a better place to ask: how to get geographic coordinates (LAT/LONG) of all stations of a centerline? I have been asked to produced geographic coordinates of all stations of a centerline by some friends. Does anybody knows how to do it inTherion, Survex or whatever software? Thanks in advance for any help. Rodrigo