Office app for Android - How to access the public preview

This app is great! It would be even better if it would permit sorting files by date on OneDrive. Otherwise, I have to try to remember the title of a recently stored file, and then browse through many dozens of files to find it. It's much easier to remember roughly the date when it was put on OneDrive, rather than remember the exact name of the file. So please, add this sort capability to the file access feature.