GPX stands for GPS Exchange Format
So it is actually a file extension that is used for exchanging geographic data. The GPX format exists since 2002 and is used to exchange waypoints, or routes between applications and Internet applications. The format actually has three types of waypoints:
- Track: A route that you have walked/cycled by using a GPS device;
- Route: A (pre) planned route;
- Separate waypoints: Think of nice different places: camping, parking, restaurant, ancient tree, etc.
Creating GPX Files with Google Maps and Garmin Basecamp [YouTube] Qnvd7uV4-V4 [/youtube]