GitHub - adammendoza/Garmin-TCX-Builder-Mac-Swift: This is a utility program to create your .tcx file from a Garmin GPS when the unit fails to build one for you.
Cue sheets; customize turn arrow and note detail level, plus more (1/2) - plotaroute.com forum
Trainingstagebuch.org - Import vom Garmin TCX-Dateien (Alternative zu Garmin Connect und Training Center) - openPR
Garmin Web TCX to QGIS : r/QGIS
How to use GPX/TCX files with Garmin, android & iphone