This Converter reads and writes NFF files as defined by Eric Haines as used in his "SPD" package of 3D utilities.

It adds one entry to the conversion lists:

Haines NFF *.NFF

Geometry
The Haines NFF format includes commands for solid cylinders and spheres, as well as polygons. When reading NFF files, this Converter only interprets the polygonal information.

Options dialog

General section
Rewind points

Flip polygon normals

Export section
Because NFF files are ASCII, you can control the line ending.

Background
Eric Haines can be reached at eric.haines@autodesk.com.

Several programs also use the acronym NFF to refer to their 3D file format, such as Sense8 World Toolkit. There is also an "extended NFF" format used in public domain utilities.