# Visualizing Complex E&M Modes CSV File
**URL:** https://discourse.paraview.org/t/visualizing-complex-e-m-modes-csv-file/6611
**Category:** ParaView Support
**Created:** [March 4, 2021, 1:55am UTC](https://discourse.paraview.org/t/visualizing-complex-e-m-modes-csv-file/6611 "2021-03-04T01:55:16Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@electronsandstuff](https://discourse.paraview.org/u/electronsandstuff)
#### Post date: [March 4, 2021, 1:55am UTC](https://discourse.paraview.org/t/visualizing-complex-e-m-modes-csv-file/6611/1 "2021-03-04T01:55:16Z")
Hey guys! Sorry that I’m a little new to paraview. I have a CSV file of the form:
x, y, z, Ex, Ey, Ez, Bx, By, Bz
0.0, 0.0, 0.0, 0.0+0.0i, 0.0+0.0i, 0.0+0.0i,
…
It represents an EM mode of a given frequency (optical) where the real/complex portions get turned into a time dependent field with something like the following.
E = cos( w t + φ ) E re − sin( w t + φ ) E im
Does anybody have suggestions on how to import this data correctly into paraview? I have started by opening the CSV file, but I was immediately struck with the problem that paraview doesn’t want to see my complex fields as a numeric datatype. It sees them as strings instead.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 4, 2021, 8:25am UTC](https://discourse.paraview.org/t/visualizing-complex-e-m-modes-csv-file/6611/2 "2021-03-04T08:25:28Z")
> paraview doesn’t want to see my complex fields as a numeric datatype. It sees them as strings instead.
ParaView doesnt support complex numbers. The best you could achieve is to separate them into two arrays or a single array with two components.
However, to achieve that, you will need to convert the strings into numerical data. Afaik, this is only possible through a programmable filter.
The next step would be to convert your tabular data into a point cloud using TableToPoints filter.