The Edge 810 and 510 can import .fit, .tcx* and .gpx file(s) into the NewFiles folder. All other files, such as .tcx and .crs, are not compatible with the cycling GPS.
To import the .fit or .gpx file(s):
The Edge will convert the file to .fit and move it to the proper folder.
*The tcx file format was introduced in a software update. Update the Edge via WebUpdater if .tcx file(s) will not import.