Hi Mindset, sorry currently MoI does not have any mechanism in it for converting a spline curve to a set of arcs.

It does have options for exporting curves as either SPLINE or POLYLINE DXF entities. If your other software does not support spline curves you might try using polylines as those are much simpler than SPLINEs and might be supported.

If you must export only as arcs you would need to use some other CAD software to do that, Rhino would be one option.

You also might try PDF or AI format output instead.

- Michael