# Region extraction

**URL:** https://discourse.paraview.org/t/region-extraction/9860
**Category:** ParaView Support
**Created:** [June 20, 2022, 5:24pm UTC](https://discourse.paraview.org/t/region-extraction/9860 "2022-06-20T17:24:10Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Lorenzo11](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/e56c9b/32.png) [@Lorenzo11](https://discourse.paraview.org/u/Lorenzo11)
#### Post date: [June 20, 2022, 5:24pm UTC](https://discourse.paraview.org/t/region-extraction/9860/1 "2022-06-20T17:24:10Z")

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Hello, everyone,

I need to extract a volume of spherical shape in a file.pvd at my disposal, how can I do this? I need to be able to choose both the centre of the sphere and the radius.  
I also have associated with my file an.xml file which contains the info of the values of the individual voxels. Is there any way I can extract those as well?  
Thank you very much.