_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.txt", new String[] {"txt", "text"}));
_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.gpx", new String[] {"gpx"}));
_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.kml", new String[] {"kml"}));
_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.txt", new String[] {"txt", "text"}));
_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.gpx", new String[] {"gpx"}));
_fileChooser.addChoosableFileFilter(new GenericFileFilter("filetype.kml", new String[] {"kml"}));