I don't recall. GPSar can output a CSV I think. It's a delimited file of some sort because I opened it in Excel. I tried to write a program which would use the coordinates to identify time spent on tacks/jibs and roundings. It only worked about 70% of the time and I never took the time to work on it again.

I did do the analysis manually on 3-4 races pulling data from Kattack and figured out how much time I was taking to turn the boat versus my competitors (and how far and fast I was going on each leg). That was pretty eye opening.