I use Excel a lot for data verification and processing in my job. I mainly used pivot functions and formulas to process data, and as the amount of data increased, I often experienced Excel crashing. ㅡㅡ;;;, as soon as I heard the explanation of Power Query in this lecture, I thought, "This is it!!" For me, who uses Excel a lot, it seems like a tool like "a treasure trove of knowledge."^^ ※ As a bonus, the instructor's calm explanation is also great~ It's so easy to listen to the lecture because he explains it calmly and a little slowly so that it's easy to understand^^