How to make a Download Library with Pro version.

I want to make a Download Library on my site as like as DEMO but I can’t find the way.
let me know how to add search, and list of download file.

if i buy a demo extension, Let me know the Add-on name to install on my wordpress plug in.

I want to make a simple download library on my site.

thanks

Could I use a DEMO for the Package. cuz of some package is not install on my wordpress website. Conflict!
if is it possible, I will try first.

Best Regard,

Gieun Kim