I haven't been able to fully master everything I learned here, but I am now able to perform data analysis and report writing—which I used to do only in Excel—using Power BI and Orange as well. Although I followed along, I haven't quite understood which situations to use them in yet, so I'll need to review the material again. I believe I've taken at least three courses from this instructor at MS Campus, and thanks to them, I've learned a lot about Excel and data analysis. Thank you so much for providing such substantial practice materials.