The runtime on the Passport uses Android 4.3. For the Office applications you need at least Android 4.4. The best you'll be able to do is install the OneDrive app from Amazon to get access to OneDrive for Business and then install the Office Mobile APK for limited versions of Office.
Go to Cobalt's landing page to learn how to install his play store on your phone. Then get 365 and whatever else from the play store. Works great with my school account.