Before I forget....
It seems Xara was at one point trying to compete with Flash and released their Flare file format which later came to be known as Xar. The anti SVG and SWF proganda is almost funny and it is about as interesting as reading a file format specification can be.
The Xar specifications are available on the Xara website http://www.xara.com/support/docs/webformat/spec/
There code seems to be available for processing the file format and the terms of use do not seem draconian so it might be possible to make use of it and maybe allow Inkscape to import Xara files.
Given how interested bulia is in Xara perhaps he is already aware of this but I hadn't heard any mention of it before (on the list/wiki/bugtracker) and thought it might be of interest.
Sincerely
Alan Horkan
Inkscape http://inkscape.org Abiword http://www.abisource.com Dia http://gnome.org/projects/dia/ Open Clip Art http://OpenClipArt.org
Alan's Diary http://advogato.org/person/AlanHorkan/