If you installed OpenOffice.org v3 on your Mac, it's probably because you wanted a free office suite compatible with multiple platforms. However, if you don't use OpenOffice or find it doesn't work for you, you can easily remove it from your Mac. Unlike PCs, Mac's don't require you run an uninstaller to remove most applications from your computer. OpenOffice creates files or folders in three separate locations on your Mac and all you need to do to completely remove it is move those files to the Trash.
Click the "Finder" icon in your Dock to open a new Finder window and then click the "Applications" folder shortcut link in the left column.
Locate OpenOffice 3. Click the application icon to select and, still holding your mouse, drag it to the Trash icon in the bottom-right corner of your MacBook's Desktop. Release your mouse when you see the Trash icon turn grey to move the application.
Click your Finder window and then click the Home icon for your username in the left column. Open your "Library" folder, then open "Application Support."
Scroll down to the "OpenOffice.org" folder. Move the folder to your Trash.
Navigate back to your "Library" folder and then locate and open your "Preferences" folder. Locate the file titled, "org.openoffice.script.plist" and move it to your Trash.
Click and hold the Trash icon and then select "Empty Trash" from the pop-up options menu. Confirm you want to empty your Trash when prompted by your MacBook.