I've added shortcut to a pdf file located at external SD card on home screen. I had a choice of using "Viewer" or "Office Suite" and chose "View" as default. Now I want to change it to "Office Suite" but can't find a way to do so... I've already browse to the, long hold it and changed default to "Office" but that didn't affect the shortcut on home screen.
Have you tried deleting the shortcut and re-adding it since you changed the default? Is the only thing that I can think of as it should work fine. The long press menu in the file location is correct.