Hello @ChuckE
Here is what OpenCutList extension can export after closing the outer drawing with a face and using its Export Face Tool :
TableTop.dxf (12,0 Ko)
It contains a DXF polyline (one unique closed line) where elliptical arcs are approximated into several circular arcs.
I hope it can be useful for you.
And for those interested, the thinking behind the arc ellipse approximation algorithm was discussed here.