The short route is to put the presets in:
User-library - application support - Adobe - Camera Raw-Settings.
opening a file in ACR and use the little triangle next to basic and in the fly out menu choose the setting you want.
You can also put the sets in a folder on your Mac, open a RAW image in ACR and use the little triangle right next to 'basic' and in the fly out menu choose load settings. In here guide to the folder and find the desired ones.