Hi,

WmfExporter passes Diagram.Bounds and MeasureUnit to the Metafile class constructor. Perhaps Word and Powerpoint do not support the diagram's default Millimeter unit.

In my tests Inkscape shows the exported WMFs as expected, but indeed they appeared clipped in Word. Also Word shows the correct width/height ratio, but the image always looks some fixed factor smaller than the original diagram, so perhaps you could try to find what that factor is and multiply diagram.Bounds by it before exporting. E.g. multiplying by 1.4 looked fine in my test, but I haven't checked if it works with very small or very big metafiles.

I hope that helps,
Stoyan