.NEF file extension
This is the list of programs to work with .NEF extension
A powerful modern download accelerator and organizer for Windows and Mac.
UFRaw (Unidentified Flying Raw) is an editor for raw images.
It performs as an image viewer, editor, organizer, manager.
Helicon Filter is a program for image editing with task oriented interface.
"Photo-Lux" is an easy-to-use but powerful and fast image viewer and more.
ForceVision is the best image viewer considering its speed.
Belarc Advisor is a tool that can analyze your computer.