Browse Tools Top 100
3DXML STEP
File conversion

Convert 3DXML to STEP

QUICK ANSWER
Is it possible to convert 3DXML to STEP?
Yes - 3DXML converts to STEP.

STEP/STP is the universal CAD interchange format, but a 3DXML usually contains only tessellated meshes, not the original solid (B-rep) geometry - so a 3dxml->step conversion typically yields mesh-quality data, not clean editable solids. For real CAD interchange, ask the sender for a STEP exported from CATIA/SOLIDWORKS directly. Dassault CAD or a dedicated converter (e.g. CAD Exchanger) can perform the export.

3 programs
Also to STEP: MODEL · X_B · X_T

On this page

Tested on macOS, Windows & Linux
Last verified Oct 2026

More free converters

HEIC, PNG, WEBP, MP3 and more - every tool here is free.

Open the toolbox

How to convert 3DXML to STEP

Converting a .3DXML file to .STEP lets you open the content in software that prefers the .STEP format, though some details may change compared with the original. The programs listed below open .3DXML files and can save or export them to .STEP (or a closely related format). One of them is CATIA: CATIA is a world leading producer of software used for facilitating engineering tasks, designing household appliances, plastic objects, assembly lines, and….

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 3DXML

CATIA
CrossManager
EnSuite

About these formats

.3DXML Dassault Systèmes 3D XML File

A 3DXML file is a lightweight 3D model created by Dassault Systèmes tools such as CATIA and SOLIDWORKS, used to share designs without needing CAD software. The simplest way to open it is…

Open .3DXML details →
.STEP STEP - Standard for the Exchange of Product Data (ISO 10303)

A STEP file is a 3D CAD model stored in the ISO 10303 neutral format so engineers can share geometry between different CAD programs. To view one for free, use FreeCAD, CAD Assistant, or…

Open .STEP details →