# Problem to save a segmentation

**URL:** <https://discourse.slicer.org/t/problem-to-save-a-segmentation/20659>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [November 17, 2021, 1:35pm UTC](https://discourse.slicer.org/t/problem-to-save-a-segmentation/20659 "2021-11-17T13:35:44Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Lise\_Kasperski](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lise_kasperski/32/13151_2.png) [@Lise\_Kasperski](https://discourse.slicer.org/u/Lise_Kasperski)\
**Post date:** [November 17, 2021, 1:35pm UTC](https://discourse.slicer.org/t/problem-to-save-a-segmentation/20659/1 "2021-11-17T13:35:44Z")

</div>

Operating system: Windows 10  
Slicer version: 4.11.20210226

Actual behavior: I have a problem with how Slicer saves my files. I can’t save my segmentation with click on save icon after I creat the model. So, I can save my segmentation as .STL and .nrrd by Segmentations modul but I can’t save as .mrml and as .seg.nrrd. I try to reinstall 3D Slicer but it doesn’t work.

 ![Capture](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/9/89db5aba34d3fbfd215a844a5979be1b364cfd2c.png)

You can see in this picture what it shows me when I press the save button.

Thank you!

Lise

---

<div class="post-metadata">

**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:** [November 17, 2021, 6:24pm UTC](https://discourse.slicer.org/t/problem-to-save-a-segmentation/20659/2 "2021-11-17T18:24:34Z")

</div>

When you use the menu File / Save, then [segmentation will be saved using the current master representation](https://slicer.readthedocs.io/en/latest/user_guide/image_segmentation.html) to preserve original data. All other representations are computed from the master representation when needed.

If you set the segmentation’s master representation to binary labelmap, then you will be able to save it as .seg.nrrd. If not then it might be a bug, which is most likely already fixed in recent Slicer Preview Releases.

---

<div class="post-metadata">

**Author:** ![Lise\_Kasperski](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lise_kasperski/32/13151_2.png) [@Lise\_Kasperski](https://discourse.slicer.org/u/Lise_Kasperski)\
**Post date:** [November 19, 2021, 11:58am UTC](https://discourse.slicer.org/t/problem-to-save-a-segmentation/20659/3 "2021-11-19T11:58:14Z")

</div>

Thank you, you are right, with the Slicer Preview Releases it’s fixed.