Stitching Strava routes

Is it possible to download a set of recorded routes from Strava and stitch them together to give (much) longer route for planning?
I have a friend who is working their way down through Slovenia, Croatia, Montenegro, Albania or Kosovo/Macedonia and Greece. The day by day routes are shared on Strava.
I quite fancy this as a tour so want to have a look at it end to end from Italy to Greece.
If I get someone with a Premium account to download each ride, is there an easy way of stitching them together and, perhaps, importing to Google maps so I can use street view and search?
I have a friend who is working their way down through Slovenia, Croatia, Montenegro, Albania or Kosovo/Macedonia and Greece. The day by day routes are shared on Strava.
I quite fancy this as a tour so want to have a look at it end to end from Italy to Greece.
If I get someone with a Premium account to download each ride, is there an easy way of stitching them together and, perhaps, importing to Google maps so I can use street view and search?
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Download as a .gpx
Join the .gpx files using GPSBabel or similar.
You can also open the files in Notepad and copy all of the <trkpt> elements from one file to the end of the new file if you're that way inclined.
Although you can stitch all the files together to make a big file, Strava might throw a wobbly if you upload it because of the big time gaps between each section. Should be fine for viewing in Google Maps/Google Earth.