This is a lecture worth paying for. It is well organized and the necessary content and the usable content are well categorized and organized. Beyond simply learning Excel, I felt that I could categorize and organize it so well by looking at the lecture materials. There is also a pivot table lecture, so if I need a pivot table, I definitely want to listen to this person's lecture. Looking at the lecture materials, you can see how much effort was put into it, and the categorization and organization are well done, so the materials look professional.