Download a file - file widget

Hello,
I need a help with file widget.

Firstly I write what I need to do:

I have a process where first actor has a form where is a widget to upload a file - this is ok in my process.

On the socound task there is a 2nd actor who should can download this file which was uplaod by first actor. but I don’t know how to do it bacoause a have only text and I haven’t go t a downlad widget. What I have to write in file >>data>> initial value and Output Operation ??

Should I make a new special variable for this document? which datatype I should choose?

Thank You for Your help.

Adrian