If opening an Ada source file does not invoke the GNATbench Ada-aware editor by default, there are two options available. The first is to right-click on the file icon in the Project Navigator, select "Open With" in the contextual menu, and then select "AdaCore's Ada Editor". This approach, however, must be followed each time a file is to edited. The much more convenient alternative is to associate the GNATbench editor with Ada files by default, This effect is achieved by associating the editor with the appropriate file name extensions, as illustrated below. Note that in the illustration we are associating the editor with the GNAT default Ada file name extensions; other extensions are equally possible.