Fine Grid 100x100

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 (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 (806.2 KB)

Constructing a correct unstructured grid file in Excel would be extremely difficult. I would suggest to use Python instead - see this complete example:

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