Sorry should have posted some example data. Note that this is just a tiny part of the data. Each file represents 1 hour so there is no hour field for time.
minute,second,fraction_sec,type,ID,error_check,data1,data2,data3,data4
0,50,17171598,2,,,17000,49,,3320
0,50,17177944,2,,,39000,58,,7024...