Does anyone know if there is an authorized program for converting between grid formats? I used to use aprogram called Contra which I got from someone in 1 Div Air Cell years ago this did work very well however the copy I have does not work on Windows 7. I have looked on the Web and found a program called GEO-Trans which yet again seems to work well. However if there is a proven system I would rather try that first. I know that there are web sites you can use however I am looking for a standalone program. Thanks for thehelp in advance.