Apache Open office
With the ability to create text documents, spreadsheets, presentations and databases, OpenOffice is an accomplished rival to Microsoft Office, which clearly influenced OpenOffice’s design. Microsoft Office users will feel completely at home and find that OpenOffice performs just as well, if not better.
Apache OpenOffice is the leading open-source office software suite for word processing, spreadsheets, presentations,graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.