Sometimes the words will go off the screen so you can't 
read them properly.

At the top of the screen, you'll have the name of the file, 
and then it'll probably say either 'Notepad' or 'Wordpad'.

If you're in 'Notepad', select 'edit', then 'word wrap'.

If you're in 'Wordpad', select 'view' then 'options'. Then 
click the tab that says 'text'.  Then click in the circle 
that says 'wrap to window' and press the button marked 'ok'.