...It is human readable text file written in XML. Read more about the GPX exchange file format here https://en.wikipedia.org/wiki/GPS_Exchange_Format.
eGPXviewer is currently available for Win10 and Linux (Ubuntu/Mint, CentOS, OpenSUSE, Raspbian) operating systems.
™ Registered trademarks for the respective owners.
This simple R code converts GPS coordinates from Decimal Degrees or Degrees Minutes Seconds format to Northings and Eastings in UTM Zone 19. Coordinates should be entered as a .csv containing the column names "Latitude" and "Longitude" (capitalization does not matter). The code was designed primarily for use by researchers at the University of Maine working on the Penobscot River, but could be easily modified to handle other UTM Zones.