How to Create rounded-corner rectangles in Xara Xtreme

One must have often wondered how to create rectangles with smooth rounded corners. Open Xara Xtreme and create a rectangle on the stage. To change it to rounded corners, click on 'curved corners'. Then one can edit how much curve is required on the rectangle. If we scale the rectangle, then it will lose the curve path. So it should be converted to 'editable shapes'. This will maintain the curves, even if scaled from one angle. This will be helpful to create those party fliers.