Moving info from 1 cell to multiple cells

Hi,

I have a clinical research database that needs 3 scores for each patient included in it. I ordered the scores from medical records and the 3 scores came back in a single cell for each patient. They came back in the format "XXX.A B C" where XXX are numbers I'm not concerned with and A, B, and C are the scores I'm looking for. Is there any way to move these scores into 3 different cells (1 for each score) along the same row? I need this done for thousands of patients. Your help is greatly appreciated!