Microsoft to bring Mobile View mode to Office for iOS
The most important, Mobile View is supposed to adjust a document to the iPad screen so that you won't have to pinch and zoom whenever a document doesn't fit the size of tablet's display.
Furthermore, some new accessibility settings will be implemented in Word, Excel, and PowerPoint, such as the option to use large text to make documents, worksheets, and presentations easier to work with.
Finally, all three Office apps will allow iOS 11 users to drag and drop documents between apps easier than ever. You'll also be able to move content, as well as copy to other apps by dragging and dropping images and other objects.
All the new features mentioned are already available to Office Insiders, but if you're not enrolled in the beta program you'll have to wait a bit more.
Things that are NOT allowed: