As a bonus, you'll see Excel filling the next cell with a formula for summing, which you can ignore if you don't care, but which provides a seamless opportunity for you to learn a bit of formula language. Step by step, these opportunities will let you become a more proficient Excel user.
Sounds cool. I never used the "buttons" on spreadsheets, but they are definitely a nice learning resource for some people. Still, it's easier to just look at a list of functions described in plain English, than try to interpret the hyeroglyphs that appear on the buttons.
Actually the functions are always shown in the user's language. The formulas are translated even for files created in other languages, which makes it a lot easier for beginners.