dxf to dsf conversion is probably searched by users that want to turn standard DXF CAD drawing to Corel Designer format (.dsf) or even to the original Micrografx Designer. This is doable, but nowadays only with Corel Designer. You might have luck with finding old Micrografx Designer installations on abandonware website, but this saves only to the original version of DSF format.
Updated: September 19, 2023