[kugestu]

Good suggestion! Unfortunately I found SVG in ppt problematic/slow when plotting many objects (think 1mio points) and sometimes details can be messed up - so rendering to bitmaps is still preferred.

[xioxox]

You could try Veusz [1], which can export in EMF format, which is useful for Microsoft Office and Powerpoint. (I am the lead author of Veusz)

[1] https://veusz.github.io/