# How to open .TRE file?

**URL:** <https://discourse.slicer.org/t/how-to-open-tre-file/9533>\
**Category:** Support\
**Created:** [December 17, 2019, 7:51pm UTC](https://discourse.slicer.org/t/how-to-open-tre-file/9533 "2019-12-17T19:51:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Duy\_H](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/duy_h/32/5464_2.png) [@Duy\_H](https://discourse.slicer.org/u/Duy_H)\
**Post date:** [December 17, 2019, 7:51pm UTC](https://discourse.slicer.org/t/how-to-open-tre-file/9533/1 "2019-12-17T19:51:31Z")

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Dataset at “[https://public.kitware.com/Wiki/TubeTK/Data](https://public.kitware.com/Wiki/TubeTK/Data)” have “VascularNetwork.tre” file. How can i open this file using 3DSlicer?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [December 17, 2019, 8:17pm UTC](https://discourse.slicer.org/t/how-to-open-tre-file/9533/2 "2019-12-17T20:17:01Z")

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You probably need to check with the TubeTK team to find out the current status.

[https://public.kitware.com/Wiki/TubeTK/Contact](https://public.kitware.com/Wiki/TubeTK/Contact)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [December 17, 2019, 9:53pm UTC](https://discourse.slicer.org/t/how-to-open-tre-file/9533/3 "2019-12-17T21:53:34Z")

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The .tre file is an ITK spatial object (scene) file. You should be able to read it using ITK or SimpleITK and save it as a vtk, vtp, ply, obj, or stl file that Slicer can read. If TubeTK contact does not respond then you can ask on the [ITK forum](https://discourse.itk.org/).