The extension for a GUI Map file is “.gui”. 40. How do you find an object in an GUI map. a) The GUI Map Editor is been provided with a Find and Show Buttons. i To find a particular object in the GUI Map file in the application, select the object and click the Show window. This blinks the selected object. ii.To find a particular object in a GUI Map file click the Find button, which gives the option to select the object. When the object is selected, if the object has been learned to the GUI Map file it will be focused in the GUI Map file.