OS X will automatically associate programs to handle file types they are built to read. For instance, if you have a file with a non-standard extension such as .xyz, then if you double-click it OS X will likely ask you to select an application to use; however, if you have installed an application that can handle .xyz file types, then OS X will detect this and launch this application when you open a file of this type. While convenient, if you would like to unlink this association then you will have to jump through a couple of hoops. Continue reading ⇒