How to Convert KML to KMZ
If you enjoy using Google Earth to figure out where you need to go, then you may want to convert your KML files to KMZ files. KML documents are explicit information records that are shown on Google Earth. KMZ documents are the compressed form of the KML records. Changing over KML documents into KMZ records requires a zip program, for example, like WinZip or WinRar.
Open a record zipping project, for example, WinZip or WinRar.
Open your KML document in the zipping program.
Spare the document as a “KMZ” record. The compressing project will change over your KML record into a compressed KMZ document.