There isn't any way to save a scene in DAZ|Studio that Poser can open. In order to save a scene for postwork in a graphics program, you'll need to render the scene, then use the File>Save last render... command. This gives you the option to save to several different file formats, including .png or .jpg. Alternatively, you can select to save your renders to a file under Render>Render Options. I prefer to see what I'm saving. :)