Open Close consists in a series of screen video captures where the default opening and closing feature from Mac OS X was analyzed. The first video shows the default way when several files or documents are opened at the same time, Mac OS place them in a continuous diagonal direction occupying the whole desktop (it depends on the software used, this is TextEdit). As TextEdit also can save the shape of each document, the study was done through three different ways to force the operative system to don't go in a diagonal direction by saving the documents occupying all the space somehow. In the second video, the documents were saved as high as the desktop to get a horizontal transition. The opposite for the third video which shows a vertical transition, and the last one the documents were saved occupying all the screen obtaining any animated transition but a colorful flickering.