test-2d-polygon.kml

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2"
  xmlns:gx="http://www.google.com/kml/ext/2.2"
  xmlns:kml="http://www.opengis.net/kml/2.2"
  xmlns:atom="http://www.w3.org/2005/Atom">
  <Document>
    <name>test.kmz</name>
    <Placemark>

      <name>test</name>
      <description>test</description>
      <Polygon>
        <outerBoundaryIs>
          <LinearRing>
            <coordinates>
						138.3941170531483,34.96888042573255
						138.3974543892543,34.96410218691245
						138.4025855224075,34.97350910526676
						138.3930322810755,34.97617417594691
						138.3941170531483,34.96888042573255
            </coordinates>
          </LinearRing>
        </outerBoundaryIs>
      </Polygon>
    </Placemark>
  </Document>
</kml>