The Import Track Logs
toolbar button allows you to browse
the file system to add GPS track logs to your project. Alternatively
you may drag track log files from the Finder to the tracks list.
HoudahGeo supports a large selection of track log file formats. These
include: GPX, NMEA, TES, TCX, ...
Please make use of the demo period to make sure HoudahGeo supports the file format your GPS device or its software can provide.