Globalmapper will open the zip files you download directly, no need to even unzip them. Start the program, click Open your own data files and choose one of the zip files. To use with TritonRMP you will probably need to change the projection. IIRC, it has to be WGS84 Geo. This is easily changed - click the icon with the wrench and screwdriver and click the projection tab. Choose Geographic (Lat/Long) and WGS84 datum.If you are interested in the export functionality of Global Mapper, but would like to test drive the features before you make a purchase, we can provide you with a demo version that does just that. Just contact us with your request and we'll do our best to accommodate you.