So you just want to view a powerpoint presentation but don’t have Microsoft Office or powerpoint installed? No problem, get the free powerpoint viewer from Microsoft.
PowerPoint Viewer 2003 lets you view full-featured presentations created in PowerPoint 97 and later versions. This viewer also supports opening password-protected Microsoft PowerPoint presentations. You can view and print presentations, but you cannot edit them in the PowerPoint Viewer 2003.
You can get it here.