If you’re intrigued, download the tiny executable at the link below, make sure you have all your Office programs closed, then run the installer. The change is subtle—the Translate button is still there on the Review ribbon, but it uses the web-connected Microsoft Translator as the default, with WorldLingo as a fallback option. Whether you click the translate button or right-click on selected text and hit “Translate,” the results pop over from the right and show your text in a new language. You can set up a default language pair to translate from/to, and, well, that’s about it.
The translator works in Word, Excel, PowerPoint, Visio, and Publisher. It’s a free download that requires Office 2003 or 2007 on Windows.