There are a few alternative office suites available and probably the most popular is the free OpenOffice suite, which is a cross-platform Microsoft Office compatible suite of software. You can open Word documents within the OpenOffice 'writer' application. However, there are other options too. For instance, Corel Wordperfect is a good popular alternative, whilst Ability Office is another.
ThinkFree Desktop 3.2 is a offline desktop office-compatible suite that will also enable you to open Word and Excel documents. It's another cross-platform office suite, so the suite you use on your PC will look the same on your Mac, and vice-versa. This makes it an easy office suite to get used to, across different operating systems. It's not free, but it's fairly low-cost and there's also an online version you can use if you have a fast broadband connection.
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