When exiting SHAPE, closing the graphics window, reading another file or starting a new file, SHAPE tries to determine if you have made any changes in the problem currently in memory; if so, you are asked if you want to save the file.
First, it checks whether the orientation has changed from the Initial Orientation established during calculation. If so, you can save the current orientation as initial rotations. It also checks whether any dialog in the Input1 and Input2 menus have been opened.
You can also close a data set by using the Close icon on the Graphics window.