Openoffice - Best Free Microsoft Office CloneOpenOffice 2.4, which is freeware, is a full procuctivity suite where you will find a spreadsheet (like Excel), a word processor (like Microsoft Word), a presentation program (like Powerpoint), a database program (like MS Access), and a vector drawing program suitable for, for example, drawing flowcharts.
OpenOffice.com is open source software, released under the LGPL license. It works transparently with a variety of file formats, including those of Microsoft Office (.DOC, .XLS, .PPT. etc). It is available in 27 languages.
OpenOffice is available on many platforms, including Windows, MacOS, Linux and Unix.
To find out more about how OpenOffice.org compares to other office suites (including Koffice, StarOffice, Google Docs etc), see the Wikipedia article Comparison of office suites
> Open Office Draw - A Free Drawing tool
> Open Office Base - Free Database Tool (like MS Access)
> Open Office Impress - Free Powerpoint Alternative
> Open Office Writer - Free Microsoft Word Clone
> Open Office Calc - Free Microsoft Excel Clone