Load File(s)/Folder Radio Buttons (File>Load GPX/LOC)
Load file(s): Click this radio button to load a single GPX/LOC/ZIP file or a group of files using wild cards. For example, to load all the gpx files in a folder use "*.gpx" (without the quotes) Enter the name of the file to load in the field below this radio button.
Load a folder of files: Click this radio button to specify a folder with multiple files in it. You can enter this folder directly or use the Find button so that you can browse to the folder location. Any combination of GPX, LOC, and ZIP files can be selected to be loaded. GSAK sorts all files by date so they are processed in the correct chronological order.