Press "Ctrl-O" in Adobe Illustrator to bring up the Open window. Alternatively, click "File" and "Open." Click the "Files of Type" drop-down menu and select "AutoCAD Drawings (*.DWG)." Navigate ...

In a Finder window, right-click (or Ctrl-click) the file whose default launch app you want to change. From the contextual menu, select Open With -> Other.

In macOS, the Open With contextual menu that appears when you right-click (or Ctrl-click) on a file provides links to all the applications installed on your Mac that are associated with that file ...