A free program for Android, by Nihon System Developer Corp..
KML Viewer by NSDev is a free, easy-to-use app that allows you to view and export the contents of your Garmin GPS watches as KML files. You can also import KML files from your computer and view them on your smartphone or tablet.
This app is designed to work with the KML format, which is a common format for the exchange of data between a watch and its attached smartphone or tablet.
The app supports the export of the following data elements:
Waypoints, tracks, routes, and activities.
The app allows you to view your data in various ways, including:
As a list, in the form of a table.
As a graph.
The app supports the export of KML files to the following devices: