Lol, nope.
You have to purchase it if you need to have it. Open office is as close as it gets, however if this is school related be careful. I ran into this issue last year and was informed that I had to purchase it, and the most recent version too. It sucked. Luckily I got student discount but still sucked.
Occasionally I do usability studies for Microsoft cause I live near their headquarters. At the end of the study you can go to their "gratuity store" and pick any item you want for free. i usually pick the most expensive one and sell it on ebay or CL. You might try doing a search there cause many people do the same.