utm2deg
Function to convert vectors of UTM coordinates into Lat/Lon vectors (WGS84)
Author: Rafael Palacios
I like how it converts the lat/lon to the corresponding UTM. Did the same thing via GlobalMapper and matches quite well.
However, if you have a big domain (spanning multiple UTM zones) and you want ALL of the data on just ONE particular UTM zone, that cannot be done (as far as I can tell.)