Although not that common, some 3D models or shapes can be saved in KMZ format (compressed Keyhole markup language). Some 3D modeling programs supports import of these files and can convert them to other 3D formats, including .xgl (XGL 3D). This can for example be done using AccuTrans 3D, but it is likely other programs may also perform this conversion.
Convert Compressed Keyhole Markup Language (Google Earth) data to XGL 3D CAD model.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert kmz to xgl on Windows
AccuTrans 3D provides accurate translation of 3D geometry between the file formats used by many popular modeling programs. Positional and rotational information for the 3D meshes is maintained.
Convert from kmz file
to xgl file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.