i have to do a presentation tonight for uni tomorrow on powerpoint for free! that i can present on pc/laptop at uni tomorrow? does anyone know any software i can use!!!
thanks

http://distribution.openoffice.org/cdrom/iso_download.html

Click that link and on the page that loads click the Mac OS link. That will download Open Office for Mac to your system then run it to install. Open Office if the free alternative to Office. It can open, edit and Save power point files

Why limit yourself to something inferior like OpenOffice when you can use the full version of Microsoft PowerPoint for free for a limited time? Since you only need it for a short while spoil yourself and install the real thing.

For a limited time free trial of the full version:
(Office 2011 for Mac)
https://www.microsoft.com/mac/trial