In this video, I go over an amazing script created by Roman S (https://github.com/dukkee/) , with a little bit of help from myself (https://www.salmannaqvi.com), that converts Excel files into network diagrams.
Please see script shown in video here:
https://github.com/dukkee/excel-to-network-diagram-converter
Please follow the instructions in the video to convert your own Excel files into Network Diagrams! :)