[Nintendo 3DS] First time jailbreaking, confused on the SD card

Hello! I've been trying to get as informed as possible before I start to familiarize with the process. I am using https://3ds.hacks.guide/ for my instructions, as it's what I've been seeing to use.

I have bought a 128 GB Sandisk Ultra SD card, as I'd like to download plenty of games and have plenty of storage. I was looking through the formatting SD cards guide, and it says I need to use guiformat. I was just confused on do I skip section I and go immediately to section II for guiformat, or do I need to do anythnig before jumping to section II. This may be a ridiculous question, but I wouldn't want to cause issues for my SD and would want to make sure I'm following the instructions correctly. Thank you!