Office suite by Apache. Good accuracy for import/exporting Microsoft documents. Oracle donated it to the ASF (Apache Software foundation) after the Document Foundation created the LibreOffice fork.

Install an appropriate package from a link below:

Apache OpenOffice 3.4 thread packaged by 01micko

LibreOffice - suite by the Document Foundation

Ooo4Kids - cut down suite for children

OooLight - lightweight word-processor

OpenOffice homepage