Put these coordinate files into the 'Coordinates' ('Koordinaten' in the german version) folder in your GEOCAD folder and restart GEOCAD.
GEOCAD it a desktop mapping software for MacOS; it has been improved to allow powerful imports of third-party-GIS-Files (Geographic Information System) such as the famous cbd-vectorfiles from the CIS World Mapping Program (cbd stands for 'compressed binary data, that's all). They consist of more than 15,000,000 vector coordinates from objects all over the world.See some impressive sample maps on the new GEOCAD sample-page