As I was able to understand the issue, you want .aspx and .do files to open in Acrobat Reader by default, is that correct?
Please refer to the following links which discuss the same topic:
Let me know if you have any questions.
Yes this what I want to do, except the fact that I'm on my Samsung Galaxy S 7, on Android 7
Envoyé depuis mon téléphone intelligent Samsung Galaxy.
Acrobat Reader(desktop and mobile)can only open .pdf files as mentioned in the links given above.
We are sorry for the inconvenience.
I would like to open the application and fill out and send it back