I would recommend you select Google KML with WGS84 (EPSG:4326). Download and extract the .kmz using a zip program. If you’re lucky, you’ll be able to import the .kml files stored within.
Failing that, your next option is to download ESRI Shapefile, and use a program like QGIS to export a supported text format. See post #2 in this thread for links to tools.