Unfortunately, the MacOS 10.7 'lion' operating system no longer supports older applications. Three months ago I bought a MacBook Air, a beautiful, slim piece of sculpture that happens to be a laptop. The last two versions of Microsoft Office for Windows disappointed (and disgusted) me so much, I avoided the corresponding Mac editions, choosing to stick with MS Office 2004. If you'd like a little background and assurance these are truly quality programs for free, read on. If you want free word processing software– or for that matter couldn't care less– skip to the end.