while attaching any file it doesn't show all option like Gmail
provide more option in attachment
We are so sorry this is happening to you. This is not how it’s supposed to work. But don’t worry, we have helpful and knowledgeable colleagues over at the Help section of the app that would be happy to address this concern. Please reach out to them by going to the app’s Setting > Help and Feedback > Contact Support
We look forward to fixing this for you.
All the best
The Outlook Mobile Team