Google Earth Keyhole Markup .KML and. KMZ File Description


MapViewer can import and export .KML and .KMZ files.


.KML and .KMZ files are imported into Google Earth to display information, such as contour maps or point locations, on Google Earth maps. Both .KML and .KMZ files contain the same information. The difference is that  .KMZ files are compressed versions of .KML files. When exporting to .KML or .KMZ files, images are exported to the same directory specified by the Export dialog.


Coordinate System

.KML and .KMZ files require that the coordinates be in latitude and longitude degrees. This means that the Map object in the Object Manager is converted to lat/long (WGS84) when exporting. The program does this conversion internally. No change is needed to the Map.



The first and second attributes for polyline, polygon, and symbol objects are automatically exported to all .KML and .KMZ files. The first attribute is used for object names. The second attribute is used for an object's description. For contour maps, the elevation is exported to the polyline object name for all polylines in the contour map.


Import Options Dialog

No Import Options Dialog is displayed.


Export Options Dialog

See KML Export Options Dialog


Export Automation Options

See KML Export Automation Options, Scaling, Spatial References


See Also

File Format Chart

Google Earth Export Options Dialog

Google Earth Export Automation Options