If that happens, please follow the below steps. The Apache OpenOffice disk images are signed by Apache as required by Apple, but Gatekeeper may still be triggered.
This is a feature to help guard against malware on Mac systems.
How to Download OpenOffice Click on the DOWNLOAD button on the sidebar to go directly to the Apache OpenOffice website. NOTE: Much of the information that follows here can be found in the Win 86 Setup Guide, secton 4. To download the most current version of Apache OpenOffice: Display Download Apache OpenOffice, and click on the large green download button displayed on the top of the web page.