# Save segmentation as .STL instead of .nrrd file

**URL:** <https://discourse.slicer.org/t/save-segmentation-as-stl-instead-of-nrrd-file/2352>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [March 19, 2018, 12:01am UTC](https://discourse.slicer.org/t/save-segmentation-as-stl-instead-of-nrrd-file/2352 "2018-03-19T00:01:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nicofin2k](https://avatars.discourse-cdn.com/v4/letter/n/977dab/32.png) [@nicofin2k](https://discourse.slicer.org/u/nicofin2k)\
**Post date:** [March 19, 2018, 12:01am UTC](https://discourse.slicer.org/t/save-segmentation-as-stl-instead-of-nrrd-file/2352/1 "2018-03-19T00:01:43Z")

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Operating system: windows  
Slicer version: 4.9  
Expected behavior: i need exports my documents in .stl  
Actual behavior: Actual behavior, i do segmentatios, everythings ok, but when save the file  
format i cant change like option .stl  
the first time that i use the program, i can export .stl but i cant now. it just save .nrrd format

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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:** [March 19, 2018, 12:18am UTC](https://discourse.slicer.org/t/save-segmentation-as-stl-instead-of-nrrd-file/2352/2 "2018-03-19T00:18:36Z")

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You need to export segmentation to model node. See [Trouble saving segment as an STL](https://discourse.slicer.org/t/trouble-saving-segment-as-an-stl/654/2?u=lassoan)