In below sample code i want to change a tip for RectangularCallout but it is not working
how to change a tip point for this shape
Shape polygonShape = worksheet.Shapes.AddAutoShape(AutoShapeType.RectangularCallout, 0, …...Parse(taskHeight) * InPoints) / (double.Parse(rowHeight...double fpointday_px = (long.Parse(fpointday) - printStartDate)...