We have found 2 software records in our database eligible for .ai4 to .dwg file format conversion.
ai4 to dwg conversion is probably related to very specific kind of export of graphics content between Encapsulated PostScript image to DWG format.
Your best option for such conversion, or import/export operation is Adobe Illustrator, because it might be very well possible that it was this software that was used to export/save .ai4 files originally.
Updated: January 18, 2023
AI4
An ai4 file extension is related to Generic Encapsulated PostScript graphic format developed by Adobe Systems.
DWG
A dwg file extension is used for standard CAD file format, originally used by AutoCAD. A DWG is a proprietary format and can only be created in AutoCAD. Other CAD programs can usually import it but not create its proprietary form. Because of this, DWGs are often exported to DXF interchange format so that they can be seamlessly used in other CAD programs.