SoftMaker FreeOffice is a free Microsoft Office-compatible productivity suite.
The package includes a word processor (TextMaker), spreadsheet (PlanMaker) and presentation tool (SoftMaker), and each of these can open both the old-style and Office 2007/ 2010 files for their equivalent Microsoft application (DOC and DOCX/ DOCM/ DOTX/ DOTM, XLS and XLSX, PPT and PPTX, and so on). And reasonably accurately, too, although there are occasional problems with more complex documents.
If you're not a fan of the Microsoft Office ribbon then the SoftMaker FreeOffice interface may appeal, as it's a return to the more conventional menus and toolbars.
And the suite has plenty of useful extra features, including a handy "Export to PDF" option on every File menu, and the ability to be installed on a USB flash drive.
If you need more, though, SoftMaker are hoping you'll upgrade to the commercial version, SoftMaker Office 2012, which can be yours from $79.95.
Please note, that you'll need to complete a registration form here to receive your free registration key to activate the program. To get your code, go here: http://freeoffice.com/en/download/freeofficewindows