Sir thank you in advance, just want to ask, I want to issue output pview, I've followed the command of the Sir demonstrated as in the picture "Im3" I attached, and I apply as in the image "Im1", after the step next will appear iteration as in " Im2 ", after the iteration process is finished I gave orders pview but instead reads" no procedure or macro command named pview exists ", I do not know what steps I did the rest saw the problem so that I can create a file paraview, thanks ...