Google already added tools that help Drive play nice with Office files, and now it's offering easy access from inside Microsoft's apps. With a new plug-in, you can open files for Word, Excel and PowerPoint from Drive. When the time comes, you'll be able to save them in Google's cloud-based repository, too. It seems simple enough to use, and it's sure to come in handy for folks who prefer Google's storage option over Microsoft's, but still use Office to get work done. For now, the add-on works for Office on Windows machines, and there isn't any mention of when or if we can expect the same tool to arrive for the productivity suite for Mac.