VDAFS
VDAFS is a graphics standard of the Automotive Industry. The abbreviation is an acronym for Verband der Automobilindustrie Flächen-Schnittstelle. This CAD interface standard serves primarily the purpose of exchanging data of car bodies and cast parts and is particularly well-suited for the exchange of freeform surfaces.
Import VDAFS
Drawing > New/Open > Open 
> 3-D Import 
After calling the function, select the file format VDAFS (*.vda) in the bottom right corner of the dialogue window and then the file to be opened.
On the right side of the dialogue window you can make various settings for the import. These settings can be preset in the Configuration Editor at Interfaces > General 3-D interfaces.
Once you have made the desired settings, click on Open to start the import..
The settings specified here can be saved as favourites. To do this, click on the 
symbol in the dialogue window. You can find more information on favourites management in the in the Manage Favourites topic of the HiCAD Basics Help. You can specify which favourite is used as the default in the import dialogue in the Configuration Editor at Interfaces > Import.
Export VDAFS
Drawing > Save/Print > Save as > 3-D Formats (STEP...) 
After calling the function, select the desired file type VDAFS (*.VDA).
On the right side of the dialogue window you can specify the options for the export. These settings can be preset in the Configuration Editor at Interfaces > General 3-D interfaces. Via the symbol 
Apply parameters from Configuration Editor, the default specified in the Configuration Editor can be set at any time.
Make the desired settings and specify the path and name of the export file. When you exit the window with OK, the VDA file is generated with the settings you have chosen.
If you want to export only the active view, use the function 3-D Export (STEP, 3D PDF...) by views in the context menu of the view.
3-D Interfaces • Interfaces • Configuration Editor: Settings for Interfaces