Orca supports importing and exporting GPX files.
When importing or exporting to GPX, GPX Waypoints will be saved as 'Spots', whilst GPX tracks will be saved as 'Routes'.
In the Orca App, they can be seen in the 'Spots and Routes' section
How do I import a GPX file?
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
This screen will appear:
MacOS: Right-click the GPX file and select Open With > Orca
If an imported route has more than 300 waypoints, Orca will split it into separate routes
For example, a route with 400 waypoints will be split into one route with the first 300 waypoints and another route with the final 100 waypoints
The divided routes will be displayed as Route Name (1/2), (2/2) etc
This simplification will allow you to import past-travelled tracks
If you are importing routes with more than 300 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.