Goole is offering Mac and Windows users of the Chrome browser the ability to open Microsoft Word, Excel, and PowerPoint files directly in their browser.
The feature, which has been already available in Chromebooks, is now available through the Chrome Office Viewer (Beta) extension.
Besides the convenience of opening Office files through the browser, the Chrome Office Viewer also protects you from malware delivered via Office files. Just like with web pages and PDFs, Google has added a sandbox to impede attackers who use compromised Office files to try to steal private information or monitor your activities.
To give it a try on Windows or Mac, get Chrome Beta
install the Chrome Office Viewer (Beta)