My design is a loose irregular circle with an internal design made up of round holes - numbering hundreds. I exported the Ai file (1MB) as outlines to .dxf, ending up with a 3MB file. The intention is to laser cut it from steel. However the fabricator says it has come out as a 140MB file consisting of polylines and splines but he needs lines and arcs. I can only open the dxf in Illustrator so I can't see what's happened. First time I've had this result. Any suggestions from the experts out there?