Kingsoft Office is a very capable office software suite which comprises a word processor, spreadsheet and presentations product. Perhaps one of its most useful features is that you can switch between a Ribbon interface, as found on recent versions of Microsoft Office, and a traditional set of menu bars.
Kingsoft Office is available in 3 versions. The free version is, well, free. There's also a Standard version, with a lot more features, at $49, and a Professional version at $69.
If you're quick, you can get the Standard version (normally $49) for free. Just head to http://www.kingsoftstore.com/brothersoft/kingsoft-office-standard-licens... where you'll find both the download link and details of how to get your free licence code.
The licence code is valid until the end of 2013, after which you'll presumably have to pay, or stop using the software, or hope that Kingsoft runs a similar offer. Still, it produces standard Microsoft Office compatible files, so you won't be left with any data that you can't easily access.