# Unable to Extract Coordinate Data
**URL:** https://discourse.paraview.org/t/unable-to-extract-coordinate-data/12247
**Category:** ParaView Support
**Created:** [June 7, 2023, 10:09am UTC](https://discourse.paraview.org/t/unable-to-extract-coordinate-data/12247 "2023-06-07T10:09:59Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Anubhav\_Dhyani](https://discourse.paraview.org/u/Anubhav_Dhyani)
#### Post date: [June 7, 2023, 10:09am UTC](https://discourse.paraview.org/t/unable-to-extract-coordinate-data/12247/1 "2023-06-07T10:09:59Z")
I just started using Paraview. I have a dataset with flowfields in .vtu format. I opened them in Paraview and I am facing the following issues:
1. Most of my functions including filters, and extractors are greyed out and I am unable to use them.
2. I want to extract the Mach Number at selected coordinates but I am only able to extract in terms of Point ID when I open the spreadsheet view.
Kindly help me with this issue as I am very new to the software.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 7, 2023, 11:34am UTC](https://discourse.paraview.org/t/unable-to-extract-coordinate-data/12247/2 "2023-06-07T11:34:10Z")
> [@Anubhav\_Dhyani](#):
>
> Most of my functions including filters, and extractors are greyed out and I am unable to use them.
Press Apply.
> want to extract the Mach Number at selected coordinates but I am only able to extract in terms of Point ID when I open the spreadsheet view.
PointDataToCellData
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### Author:  [@Anubhav\_Dhyani](https://discourse.paraview.org/u/Anubhav_Dhyani)
#### Post date: [June 7, 2023, 5:40pm UTC](https://discourse.paraview.org/t/unable-to-extract-coordinate-data/12247/3 "2023-06-07T17:40:45Z")
Okay, I converted it to cell data. Now how do I extract coordinates and mach number at those coordinates?