I rarely use Microsoft Office, although I do have Office 2004 on my OS X 10.4 Tiger, 10.5 Leopard, and 10.6 Snow Leopard Macs. Unfortunately, AppleWorks is incompatible with OS X 10.7 Lion and later, so I’ve had to find an alternative since installing OS X 10.9 Mavericks on my Late 2008 Aluminum MacBook.
I’m using it to replace AppleWorks, which I’ve been using since ClarisWorks 1.0 shipped back in the System 7.0 era. LibreOffice is a free alternative to the not-inexpensive Microsoft Office suite.