It is meant as an example for beginners to understand how you work with data in tables with a programming language. You got to walk before you can run. The adv

It is meant as an example for beginners to understand how you work with data in tables with a programming language. You got to walk before you can run. The advantage of a programming language such as Julia is that you can simply copy paste code examples to manipulate data by just reading a blog entry as in the case. You cannot do that with Excel. When you begin getting into more advance Excel functionality, it is not obvious how it works, and learning it will require a very visual approach. You cannot search through a blog and copy some code. You need to look at pictures and videos showing how the GUI is operated. Alternatively read a textual description of what you need to click on. Rather cumbersome.