Have you any effects in your xar file or your design, like transparency, shadows or fill effects and clipview?. If yes then you get the error, but if you export it as only shapes with flat fill it well works.
Also select all objects. then at first convert all objects to shapes, with no transparency, shadows and fill effects like eliptical fill only flat fill say like eg red and yellow or black and white then export it normal. try to do this and in Corel draw you can recoler it like you want. Regards BP