LibreOffice is an open-source personal productivity suite that gives you six feature rich applications for all your document production and data processing needs, writer, calc, impress, draw, math, and base. Support and documentation is free. LibreOffice also comes configured with a PDF file creator, meaning you can distribute documents that you're sure can be opened and read by users of almost any computing device or operating system.
What's new in this version:
Version 4.1 includes improvements in the area of document compatibility, which increases the opportunities of sharing knowledge with users of proprietary software while retaining the original layout and contents.