# Saving conserved variables in .vtu files

**URL:** <https://pyfr.discourse.group/t/saving-conserved-variables-in-vtu-files/1029>\
**Category:** Just Starting\
**Created:** [13 February 2024 13:33 UTC](https://pyfr.discourse.group/t/saving-conserved-variables-in-vtu-files/1029 "2024-02-13T13:33:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![annarenshaw1](https://yyz2.discourse-cdn.com/free1/user_avatar/pyfr.discourse.group/annarenshaw1/32/610_2.png) [@annarenshaw1](https://pyfr.discourse.group/u/annarenshaw1)\
**Post date:** [13 February 2024 13:33 UTC](https://pyfr.discourse.group/t/saving-conserved-variables-in-vtu-files/1029/1 "2024-02-13T13:33:08Z")

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Hi!

I was wondering if there is a way, when running the _pyfr export_ command, to write the conserved variables into the .vtu files, rather than converting them to the primitive variables.

Thanks!

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**Author:** ![fdw](https://avatars.discourse-cdn.com/v4/letter/f/a587f6/32.png) [@fdw](https://pyfr.discourse.group/u/fdw)\
**Post date:** [13 February 2024 13:52 UTC](https://pyfr.discourse.group/t/saving-conserved-variables-in-vtu-files/1029/2 "2024-02-13T13:52:42Z")

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No. However you can easily transform back using the calculator feature in ParaView.

Regards, Freddie.