Formatting

Do you mean you want to change your margins?

There is usually a Page Setup option under File (or something similar).

Or do you want the lines to wrap to the window? Which version of Word?

Just a gentle note to the original poster. It's slightly rude to post a question here and then just walk away. Sometimes there's a good reason (computer down, family emergency, whatever), but otherwise it's more courteous to come back and reply or say the problem has been solved.

It's not a big thing in this case, but some times people go to some trouble to help others out.