isicmexico
Hi
For this you can use custom html module or Content blocks and link your files via text links or buttons.
You need to upload files on your server, if you want to download them from your server or Link them directly from site on which they will be downloaded.
If you are using any 3rd party extension for this, you need to check the extension has module to show these files, so you can load the module via Spotlight block in JA Builder pages.