wrap text and Alt + Enter
Differences between the use of wrap text and the Alt + Enter in adusting the size of a text in a cell.
Wrap text makes the cell have a 'hard' border so that no matter how much you put in the cell it won't go past the cell border. Alt+Enter makes it so that a user-defined amount of information in the cell goes into the next line but it may still stretch past the cell border. I can't think of why you would use Alt+Enter over Wrap text.