Microsoft office is a suite of productive programs (Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Access), created by Microsoft for windows operating systems, they are not free tools , you can buy them in any store (compter stores) , but if you can not afford it, then the only strong suite to look for is to download the free source OpenOffice.

 OpenOffice is a multiplatform and multilingual office suite and it is an open-source that means it is free to download. Use. And distribute, many different operating systems are supported including Linux, Microsoft Windows, Solaris, Mac OSX…

OpenOffice comes as a collection of different programs designed to mirror what is available in Microsoft office, it includes

Writer: similar to Microsoft Word, it includes functions and tools, export PDF and other kind of documents like DOC from Microsoft Word…

Calc: similar to Microsoft Excel, it even provides a number of features that are not present in Excel like writing a spreadsheet directly as a PDF files etc…

Impress: similar to Microsoft PowerPoint , creating amazing presentations it can export SWF flash files and play them on any computer and much more

Base: similar to Microsoft Access it is easy to create or manipulate databases, reports…

Draw: a graphic editor

Math: editor of mathematical formula similar to Microsoft Equation Editor.

QuickStarter

As you can see there more tools and application included in OpenOffice then Microsoft office and it is free to download , so if you really can't afford buying Microsoft office you can go to www.openoffice.org and download it , easy to install and it comes with great features as you saw above