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Data for Global Mapper Mobile can be prepared in Global Mapper desktop, then exported to a Global Mapper Mobile Package file (*.GMMP).
Users 
- Prepare data for export in Global Mapper desktop.
 - Select File > Export > Export Global Mapper Mobile File…
 - Specify the desired export options. The format is a variant of the Global Mapper Package (*.GMP) file format, and many of the export options are similar.
 - Click “OK” and specify file name (*.GMMP).
 
There are multiple methods for transferring data from a computer to the iOS device, including connecting the device to the computer and using finder,