No, Microsoft does not make anything for free.
I personally prefer the older versions of Office, but if you want free, here is an open source that works almost the same: HTTP://www.openoffice.org
As Cyberat_88 said, you cannot obtain a legal copy of any of the Office Suites online. If you do find a copy free for downlad with an activation key, it is considered piracy, and piracy is an illegal offense. But, I too prefer OpenOffice.