Wnutrak

Wnutrak is an open source software which can convert Garmin gps.bin files to a standard GPX XML file, that is more then more easily suited for consumption by the various editors.

It can be obtained here: http://www.gmaptool.eu/en/content/nutrak

I works natively under Microsoft Windows and can be compiled under linux using the g++ compiler, just issue the "g++ -DNUTRAK_CMD nutrak.cpp -o nutrack" command and you will obtain an executable named nutrack.