Hello, I am trying to use the read_csv function where the first line in the csv has the column names. I tried using the # in front of the names but i get the result of FIELD1, FIELD2, etc. I tried looking in the help but didnt see any usage on the # mark, I found that tip here http://web.astroconst.org...doc/io/read_csv.html my code datstruc = read_csv(datfile.csv,header) datfile.csv file (just the first 5 rows) NAME,aPH,aSM,bPH,bSM 398.6,1,10,100,1000 439.2,2,20,200,2000 458.3,3,30,300,3000 479.8,4,40,400,4000 output FIELD1 DOUBLE Array[15] FIELD2 LONG Array[15] FIELD3 LONG Array[15] FIELD4 LONG Array[15] FIELD5 LONG Array[15] I dont want to write code just to rename the fields of the structure if i dont have to. Any suggestions?