The Export KML/KMZ (Vector Only) command allows the user to export any loaded vector data sets to a KML/KMZ format file for display in Google Earth.
the command displays the KML/KMZ Export
Options dialog (pictured below) which allows the user to setup
the export. The dialog consists of a KML/KMZ Options panel, a Tiling panel,
and an Export Bounds panel which allows the user to set up the portion
of the loaded data they wish to export.
The KML/KMZ Export Options panel allows
the user to set up the target format for storage and the sample spacing,
as well as other options such as whether to store all of the resulting
files in a KMZ file (recommended) and whether or not to render and save
loaded vector data.
The Character Encoding: section allows the user to choose from a drop down menu of supported encoding options, the default is UTF-8.
For larger data sets, users can choose to Generate Index KML File.
The Feature Descriptions section allows advanced users to control feature Descriptions, Links and Attribute Values. The 3D Line, Area, and Point Export sections allow the user to determine how 3D features will be drawn.
Other options allow the user to determine how point features will be displayed and to control whether or not picture points (i.e. points with externally linked images, like a JPEG with an EXIF position) are embedded directly in the KMZ or are just linked to the local file on disk.