I am actually importing spray data from this summer. It originated in the FMX display. I was able to figure out how to do this based on your last comment of deleting data outside the field boundary. I am new to the whole mapping portion as i just added the yield monitor this fall ( i have been using the fmx for guidance and rate control for the last 1 1/2) so i greatly appreciate your insight on how to work around this problem. It would be nice if one could read just the line data for the 1 field as i have numerous fields and if it did not have to sit and update all the other fields lines every time it would greatly speed the process of importing data up.