As a medical doctor and researcher, I learned to conduct data analysis using Mathematica [version 13.1]. This tool is amazing. For a friend called Rebekka, I give an introduction to the program in German.
Therefor, you find 5 Mathematica-Notebook-Files (.nb). I included audio files to explain the functioning. Just download the .nb-files and the xlsx.file (and audio files), open them with Wolfram Mathematica and start listening to my voice.
Enjoy the discovery!