PARTNER/ASPAN can generate DXF and NC files.
1) DXF files in AutoCAD R 12 format: The options enable the generation of ASCII DXF or Binary files. If 'Diameter Return' option is selected, routes are exported as concatenated polylines with the thickness attribute set to the router diameter. If 'Diameter Return' option is not selected, routes are exported as simple lines. The "Z" information, i.e. the depth of the hole or route is stored in the THICKNESS property. If the THICKNESS property has not been specified, the default depth is assigned by Aspan. THICKNESS = -12 means depth is 12.