It is used to create routes and GPS files. You can view GPX and many other GPS data files including FIT, KML, etc. You can open a GPX file in it using its File > Import option. Then, it will show ...
Here are the steps to convert an XLS or XLSX file to GPX format using this free software: Download RouteConverter. Launch this portable application. Open an XLS or XLSX file. Edit the data if needed.