What is .TCX file extension?
XML file used to transport fitness data between Garmin products; supported by various Garmin GPS devices; may include data such as type of sport, lap time, distance, calories, intensity, and other information.
TCX files can be opened with Garmin Training Center software. They are also supported by MotionBased.com and the Garmin Communicator Plugin.
The TCX format is available in both TCX v1 and TCX v2 schemas.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.