Notes about the TPG file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The TPG file type is primarily associated with 'TOPO! Sync' by National Geographic. TOPO! Sync has consolidated .TPG files under the umbrella of the .TPO (which see) file. You can view existing .TPG files in TOPO! Sync by going to File | Merge .TPG Region. Browse and find the location of the .TPG (or .TPO) file you wish to open in TOPO! Sync. While .TPO files contain route, symbol, text and bookmark information, .TPG files are concerned exclusively with preserving GPS waypoint and route data.