Install the font first before use. How to install font

windows : 
https://www.fontspring.com/support/installing/how-do-i-install-fonts-on-my-windows-pc

mac :
https://www.fontspring.com/support/installing/how-do-i-install-fonts-on-my-mac

How to use open type features
https://helpx.adobe.com/illustrator/using/special-characters.html

FOR FULL VERSION:
http://letterhend.com/product/mukadua-font-duo/


Regards,
Letterhend Studio