How to download DNL reader?

Hi guys,

I hope someone can help me with this.

For a course I need to open .dnl files in the DNL Reader.

I tried to download the DNL reader from desktopauthor.com to my Macbook Air.

I downloaded X11, the fonts and Wine (this is required, as it says on the desktopauthor website).

When I downloaded all these programs, I tried to open a .dnl file, but ... nothing happend.

What am I doing wrong?

Thank you anyway.