Google Earth is the most common program to open KMZ files since it also supports KML and ETA formats. In terms of specific content, KMZ files contain geographical data, such as latitude and longitude coordinates for a specific location, 3D model data, and other geographical information, such as maps that pertain to any given location. By packing all the KML files into a compressed KMZ format, the file takes up less bandwidth and can easily be imported into programs which support this type. The purpose of a KMZ file is to reduce the amount of disk space which is typically occupied by large KML files. KMZ stands for Keyhole Markup Language Zipped and compresses all KML folders and subfolders into one file which can be accessed using a geo-browser.
KMZ are compressed files that contain the content from a KML (Keyhole Markup Language) file, which is used for importing geographical data into Google Earth. KMZ files are placemark files which are used by mapping applications in Google Earth and the related Earth Viewer software.
