i don't understand what you want to mill... and i think path has the same problem
Should it be a rectangle with holes ore pockets in it, or should be the "ornament" left only? You need allways to create a 3D part if you want gcode for milling out a part.
The Picture shows also a .svg import. After deleting all not needed pathes (i have always a lot) the part looks like should look in "real live" to and for that part i get the path and gcode to mill it out.