Zone Selection - If you selected UTM / State Plane points in Step 2, you must tell the wizard what zone these points are in. Even if the zone is contained in the text file, you must make the selection manually at this point.
You must also tell the wizard what units the grid is in.
If you chose a State Plane coordinate system in Step 3, the Zone designated is implicit in the selection you made. The Zone selection box will be disabled.
Notes:
