I lifted this SVG from: http://www.bytemuse.com/post/fibonacci-spiral/.

Fibonacci Curve from Ruby code to SVG Output.xar

I saved the <svg> HTML as a SVG file and dropped into Xara.
This give the black blob, which I set to be no fill, solid 2pt line and scaled.

The one here is 13 separate curves all grouped: http://www.downloadclipart.net/downl...cci-spiral-svg.

Acorn