If you work with Navisworks, then you probably have noticed that it does not provide a built-in mechanism to create template files like AutoCAD or Revit. What can be done though is creating an empty .NWF file with dummy or empty linked files that can be replaced later.
- Start a new Navisworks file and save the .NWF according to your naming conventions.
- Append dummy or blank files into the project that following your naming conventions. These dummy files should be stored in a folder structure with the .NWF file.
- Create your search sets, clash sets, etc.
- Save the template.