Exporting to Strava
Connect your Strava account once in settings. Pedalsim only ever uses Strava to upload rides; it is never a sign-in method, so connecting Strava has nothing to do with your Pedalsim account itself.
Every finished ride uploads to Strava automatically in the background, with automatic retries if the upload fails the first time. You can also download the ride's FIT file directly and import it anywhere else that accepts one.
Disconnecting Strava in settings stops future uploads; it does not remove rides already uploaded, and does not affect anything stored in Pedalsim itself.