# \#data-dialog

**URL:** https://discourse.slicer.org/tag/data-dialog/545.md

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## [How to change the default file format for save](https://discourse.slicer.org/t/how-to-change-the-default-file-format-for-save/46278)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 2\
**Last updated:** [February 28, 2026, 4:01am UTC](https://discourse.slicer.org/t/how-to-change-the-default-file-format-for-save/46278 "2026-02-28T04:01:31Z")

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Hello, When we click on the save button the default file format for saving a scene is .mrml. Is there any way I can change it to .mrb? Is there a way to edit the config file so that the save data dialog opens with .mrb …