.NB file extension

This is the basic program to work with .NB extension

Wolfram Mathematica

Wolfram Mathematica Mathematica Notebook

Mathematica is a technical computing software package. It has nearly 5000 built-in functions covering various areas of technical computing; all of them are carefully integrated so that they work perfectly together. It uses the Wolfram Language for writing code... (more)

The program works with the following extensions: m, ma, nb and nbp

.NB extension is also supported by the following programs:

Wolfram Mathematica Player

Wolfram Mathematica Player Mathematica Player Notebook

Mathematica is renowned as the world's ultimate application for computations.
Wolfram Mathematica for Students

Wolfram Mathematica for Students Mathematica Notebook

Mathematica is ideal for students enrolled in a variety of courses.