CATIA

Catia V5 is a CAD system developped by Dassault Systèmes in 1998, currently widely used in the automotive, aerospace and others industries.

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NX

A PRT file is a model part file saved in a three-dimensional model format used by Unigraphics, a 3D CAD program. It contains surface and solid information for a single part. PRT files are saved in a binary format, similar to an Alias wire model and an SDRC (Structural Dynamics Research Corporation) model.

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