GitHub - jakubtrzcinski/TCX-Parser: TCX (Garmin Training Center) file parser
Cue sheets; customize turn arrow and note detail level, plus more (1/2) - plotaroute.com forum
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.