Download Apple Mac OS X Lion 10.7.5 Supplemental Update for Mac to update your Mac OS X Lion for Intel-based Macs. The application is free to download and use.However, the ONLYOFFICE is made for the Bussiness users who basically deals with SAAS application. The ONLYOFFICE is another open source office for mac that you can try out. Moreover, iWork can easily read and edit your Microsoft word docs as well as it can export the files into Doc File.