An nwk file extension is related to the Nano Wiki Engine for ASP.NET.
NWK file extension - Nano Wiki Engine data source
What is nwk file? How to open nwk files?
File type specification:
The nwk file extension is associated with the Nano Wiki Engine, a small Wiki engine (web application written in ASP.NET) developed by Silvio Torre.
The nwk file stores data resource in text format for Nano Wiki Engine.
This nwk file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.