iOS: Google has released updates for its Google Docs and Google Sheets apps for iOS that make it possible to open, edit, and save Microsoft Office documents. They’ve also released Google Slides for iOS.
The big new feature here is Sheets in Docs is the ability to edit MS Office documents natively. This means you can open anything created in office, but more importantly it means you can also save those files in their original Office formats. Likewise, you can now create and edit Google Slides on your iOS device with the new Slides app (which also supports Powerpoint files).