Some users attempt to find the raw content files—dumping thousands of .nxp presets online for free. However, without the authorized Nexus engine (the player itself) to read these files, the content is useless data. You cannot simply drag a Nexus preset into a DAW; you need the licensed engine to play it.
Nexus 2 is end-of-life. reFX has moved to Nexus 4 (and 5). Because of this, official free downloads are rare. However, you can legally fill Nexus 2 with sounds for very little money (or free) if you know where to look. Nexus 2 Content Free LINK Download
Older "repack" versions of Nexus 2.2 (which often include 42+ libraries) are sometimes distributed via forums (e.g., this VK post Installation Note: These typically involve mounting an ISO, copying the Nexus Content Some users attempt to find the raw content