.IPN file extension

This is the basic program to work with .IPN extension

Autodesk Inventor

Autodesk Inventor Autodesk Inventor (tm) Presentation Document

Autodesk Inventor is a program that offers an easy-to-use set of tools for 3D mechanical design, documentation and product simulation. You can control and manage assembly design data, combine Inventor and Alias for plastic part design, accelerate design of tubes, pipes and hoses, change the 3D sketch of part and menu ribbon... (more)

The program works with the following extensions: ipj, ipn, ipt, iam, ide and idw

.IPN extension is also supported by the following programs:

Autodesk Inventor Professional

Autodesk Inventor Professional Autodesk Inventor (tm) Presentation Document

A comprehensive, flexible set of software for 3D mechanical design.
Autodesk Design Tracking

Autodesk Design Tracking Autodesk Inventor (tm) Presentation Document

It ixes that are in Autodesk Inventor Release 3 Service Pack 1.