# creating single nrrd file

**URL:** <https://discourse.slicer.org/t/creating-single-nrrd-file/8812>\
**Category:** Support\
**Tags:** registration\
**Created:** [October 17, 2019, 11:17am UTC](https://discourse.slicer.org/t/creating-single-nrrd-file/8812 "2019-10-17T11:17:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![HariES](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/haries/32/6045_2.png) [@HariES](https://discourse.slicer.org/u/HariES)\
**Post date:** [October 17, 2019, 11:17am UTC](https://discourse.slicer.org/t/creating-single-nrrd-file/8812/1 "2019-10-17T11:17:10Z")

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When I am saving loaded dicom files slicer saved as .nhdr and raw data files instead single .nrrd. I am not able to import this detached files in metric test. How to make single .nrrd file

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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:** [October 17, 2019, 11:19am UTC](https://discourse.slicer.org/t/creating-single-nrrd-file/8812/2 "2019-10-17T11:19:29Z")

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Nhdr format uses two separate files for header and pixel data. Choose nrrd format in Save data window to store image in a single file.