If you plan a route in marble, you can export the route in several ways: 1. The "save route" button, only KML 2. Right click -> export route, KML and GPX When importing a route, only the "Open route" button with KML works. I think GPX is a quite common format and often used by other programs (e.g. osmand or some websites). It would be nice if you unify the too ways and allow exporting and importing KML and GPX. Reproducible: Always