These last three days, I joined a training about Microsoft Excel at Karawaci. From the beggining , I knew this training is gonna be so hard. You know, doing things about numbers, tables, columns, and grafik. Hands up y'all! I really don't know about those things. I am soooo not good with that. But then I realized this format is so usefull. Sometimes we just don't care if we make some tables or calculate numbers, we just did it with the simple way. But if you already know the formula or wording or abbrevation, then you can speak to yourself that you are a smart person, because you can make it with an easy way. I was just wondering, who's the first person found this format? That person must be very genius. Salute!