By no means a complete list: Here is a list of desktop applications that support GPX and LOC file formats. - EasyGPS (GPX/LOC) - A free application for managing both LOC and GPX file types [image: Windows] - GPX Spinner (GPX) - Geocaching Specific - Shareware application that can convert GPX files to iSilo and Plucker format. [image: Windows] - ClayJar Watcher (GPX) - Geocaching Specific - Freeware application that helps you manage your Pocket Query GPX files - GPSBabel - A free console-based application for converting LOC and GPX to various other formats. Source code available [image: Windows/Linux - Source Code provided] [image: Macintosh] - Geocaching Swiss Army Knife (GSAK) (GPX/LOC) - All in one application that allows you to manage GPX/LOC files, upload to your GPS, and convert to various other formats. Uses GPSBabel as the back end.[image: Windows] - GPS Connect for Mac OS X (GPX) - Garmin Specific application that works with GPX [image: Macintosh] Also, there are applications that work on Palm or PocketPC based devices - GPXSonar (GPX) - Free application for managing GPX files on your PocketPC 2003 or later - GPXView (GPX) - Donateware application for managing GPX files on PocketPC 2002 or later - Cetus GPS (LOC) - Free PalmOS application that interfaces with your GPS through a serial port (or connected GPS). It can read waypoint files in LOC format. - iSilo - Document reader for Palm OS(r), Pocket PC, Windows(r), and Windows(r) CE Handheld devices. GPX Spinnercan "spin" GPX files into this file format. - Plucker - Alternate web viewer that works with Palm OS(r) based handheld devices. GPX Spinnercan "spin" GPX files into this file format. On 8/19/06, Trisha Brasher wrote: > > What program do I need to open a gpx file? >