Orca supports importing and exporting GPX files.
When importing or exporting to GPX, GPX Waypoints will be saved as Spots, while GPX tracks will be saved as Routes.
How do I import a GPX file?
To import GPX file into Orca:
iOS and Android: From the application you want to share from, share the GPX via the standard share menu and select Orca as your share destination
MacOS: Right-click the GPX file and select Open With > Orca
If an imported route has more than 50 waypoints, Orca will simplify the route with a tolerance of 0.0005 degrees or about 30-60 meters per waypoint, depending on latitude. This simplification will allow you to import past travelled tracks.
If you are importing routes with more than 50 waypoints, always validate the route after import to Orca.
How do I export a GPX file?
To export a Route or Spot as a GPX file, open your Route and Spot list from the Main Menu, press the three vertical dots of the item you want to export, and then select Export GPX.