The KMZ File Extension
Data Files: Google Earth Placemark
File extensions tell Windows which programs are used to open different types of files. Common file extensions include .txt, .doc, .jpeg, etc. Windows stores information about each file extension (including File Extension KMZ) in the Windows Registry.
If you receive errors when trying to open KMZ files, it could be for the following reasons:
Missing Host Application: Windows doesn't have a default application that is capable of opening, reading and rendering information embedded using the KMZ file specification.
Corrupt File Type Association: The default host application may exist for KMZ file type but its file association with KMZ files was corrupted in Windows Registry.
We recommend that you download and install PC Health Advisor to fix both types of issues:
Identify and install Host Application: PC Health Advisor scans your PC, identifies the missing host application for KMZ files, and provides you with the most up-to-date copy of the host application.
Repair File Type Association: PC Health Advisor repairs corrupt file type associations so that KMZ files can always be opened and viewed correctly afterwards.
All about file extension KMZ:
KMZ File Extension is a Google Earth Placemark File. The KMZ file extension is related to Keyhole Markup Language. A .kmz file is the compressed version of a .kml file. Keyhole Mark-up Language is an XML based language for modelling and storing geographic features such as points, lines, images and polygons. KMZ files are zipped .KML files, which make them easier to distribute and share with multiple users. GPS location information is always stored in the KMZ file. The building designs themselves are saved in SKP.
It was developed by Google and it stores map locations viewable in Google Earth, a global mapping program; provides a bird's eye view of locations throughout the U.S. and other areas of the world; placemarks may include a custom name and the latitudinal and longitudinal coordinates of the location.
KMZ files may also include limited 3D model data exported from Google Sketchup (as an .SKP file) or from ArchiCAD. The model can be placed on the map at a specific location to provide an idea of what the building will look like in that area.
In 2006, Google announced Google SketchUp, a freely downloadable version of SketchUp. The free version is missing some functionality of SketchUp Pro, but includes integrated tools for uploading content to Google Earth and to the Google 3D Warehouse, a repository of models created in SketchUp. A new toolbox enables a viewer to walk around and see things from a person's point of view; it adds labels for models, a look-around tool, and an "any polygon" shape tool.
The free version of Google Sketchup can export 3D to .dae and Google Earth's .kmz file format. The Pro version extends exporting support to include the .3ds, .dwg, .dxf, .fbx, .obj, .xsi, and .wrl file formats.