Files with nzp file extension might be found as profiles from old Noise Ninja program.
NZP file extension - Noise Ninja GRD profile
What is nzp file? How to open nzp files?
File type specification:
The nzp file extension was used in old Noise Ninja graphics editor for files that contains saved profiles.
Used to add more GRD profiles to the program. Seems like the program was discontinued.