This article explains how a Garmin activity can be added to a new O-Analyser activity.
We recommend this tutorial from Garmin*: https://support.garmin.com/en-CA/?faq=W1TvTPW8JZ6LfJSfK512Q8
Here's a helpful video: https://www.youtube.com/watch?v=vBo0QRFCdF0
*To use the activity later, the activity must be exported in GPX format.
If you have any further questions, please contact us.