U3D IGS
Not possible

Convert U3D to IGS

Can you convert U3D to IGS?
QUICK ANSWER
Is it possible to convert U3D to IGS?
No - not a direct conversion.

IGES/IGS is a CAD B-rep format (boundary representation with exact NURBS curves); U3D stores triangle mesh geometry only. Triangle meshes cannot be accurately converted to B-rep without reverse-engineering the surfaces. Use original CAD source files instead.

No direct path
Also to IGS: STP · X_B · CATDRAWING

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Last verified Oct 2026

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Converting U3D to IGS

A .U3D file and a .IGS file hold different kinds of data, so there is no direct way to turn one into the other. The programs listed below can open .U3D files and may be able to export the content to a format closer to .IGS.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert U3D

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