Whenever you run the Layer to KML command in ArcMap it always exports <MultiGeometry> </MultiGeometry> tags with the kml. This is a problem because when loading that file in Google Earth the Measurement tab that shows line length is not available. This tag is included in the kml when exporting regardless of whether or not the features in ArcMap contain MultiPart features - it's always included when all the features are Single Part only. How can I prevent this from happening? Simply removing the tags from the kml does not appear to work either - it somehow corrupts the file so that only the first feature loads in Google Earth.