Download file after hitting “submit” button?

Is there a way that a file will download automatically once the viewer clicks on the “submit” button?

I tried to upload a file for the user to download on the autoresponder section under the “messages” tab but it’s giving me an error.

Here is the image:

https://www.evernote.com/l/ATSDC3EH4H9MH629Y1WIqV-zgNYeYmyArXM/