# Fine Grid 100x100
**URL:** https://discourse.vtk.org/t/fine-grid-100x100/1493
**Category:** Support
**Created:** [August 6, 2019, 7:06am UTC](https://discourse.vtk.org/t/fine-grid-100x100/1493 "2019-08-06T07:06:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Vaya\_Putra](https://discourse.vtk.org/u/Vaya_Putra)
#### Post date: [August 6, 2019, 7:06am UTC](https://discourse.vtk.org/t/fine-grid-100x100/1493/1 "2019-08-06T07:06:50Z")
hi
i want to make unstructured grid 100x100x1
by using calculation in excel then i write in vtk file.
i figure out the error in line 443 but still struggle.
if there anyone do same problem with me
. so i can not visualize in paraview.
[g100x100.vtu](https://discourse.vtk.org/uploads/short-url/gk1N3mHXM834PVmDpYujcJyBt8K.vtu) (806.2 KB)
ERROR: In /build/paraview-lH8wFv/paraview-5.4.1+dfsg3/VTK/IO/XML/vtkXMLDataReader.cxx, line 443
vtkXMLUnstructuredGridReader (0x5594bc18a700): Cannot read point data array “phasefield” from PointData in piece 0. The data array in the element may be too short.
[g100x100.vtu](https://discourse.vtk.org/uploads/short-url/gk1N3mHXM834PVmDpYujcJyBt8K.vtu) (806.2 KB)
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### Author:  [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [August 11, 2019, 4:26am UTC](https://discourse.vtk.org/t/fine-grid-100x100/1493/2 "2019-08-11T04:26:24Z")
Constructing a correct unstructured grid file in Excel would be extremely difficult. I would suggest to use Python instead - see this complete example: [https://lorensen.github.io/VTKExamples/site/Java/IO/WriteVTU/](https://lorensen.github.io/VTKExamples/site/Java/IO/WriteVTU/)
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### Author:  [@Vaya\_Putra](https://discourse.vtk.org/u/Vaya_Putra)
#### Post date: [August 17, 2019, 3:55pm UTC](https://discourse.vtk.org/t/fine-grid-100x100/1493/3 "2019-08-17T15:55:03Z")
thank for your help.
i am wonder that i define hexahedral cell. but when i saw on paraview every edge looks like prims shape
i tried check connectivity but i think correct any suggestion? hope my grind does not broke