# How to convert/export vtk unstructured grid file to step file format

**URL:** https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200
**Category:** ParaView Support
**Created:** [August 9, 2024, 3:49pm UTC](https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200 "2024-08-09T15:49:50Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![anoopng](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@anoopng](https://discourse.paraview.org/u/anoopng)
#### Post date: [August 9, 2024, 3:49pm UTC](https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200/1 "2024-08-09T15:49:50Z")

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Hey!

I just wanted to know how to convert/export vtk unstructured grid to step file format.

I have a topology optimization results in vtk unstructured grid format and want those files in step file is there a way to do that.

I want this step file to perform FEA.  
Thanks in advance.

Anoop

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 12, 2024, 11:27am UTC](https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200/2 "2024-08-12T11:27:02Z")

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> [@anoopng](#):
>
> I have a topology optimization results in vtk unstructured grid format and want those files in step file is there a way to do that.

I’m afraid ParaView cannot write to .step format, but it can only read .step

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### Author: ![Mayank\_Shekhar](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mayank_shekhar/32/16162_2.png) [@Mayank\_Shekhar](https://discourse.paraview.org/u/Mayank_Shekhar)
#### Post date: [March 14, 2025, 12:10pm UTC](https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200/4 "2025-03-14T12:10:41Z")

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Dear Anoop,  
I am also working in topology optimisation, and I want to convert the .vtu file to .step file format. But, I do not know how to do it. Can you please suggest how to do that?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 17, 2025, 8:07am UTC](https://discourse.paraview.org/t/how-to-convert-export-vtk-unstructured-grid-file-to-step-file-format/15200/5 "2025-03-17T08:07:58Z")

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> [@mwestphal](#):
>
> I’m afraid ParaView cannot write to .step format, but it can only read .step

I’m afraid ParaView cannot write to .step format, but it can only read .step