How to clean crab

Looking for tutorial on how to clean crab since this in my first time doing it...yesterday I bought it just because a friend told me that it was extremely cheap compared to KL without thinking. I never clean crab since I do not eat it. Don't know how to eat it, seems too difficult for me to korek all the isi keluar...I guess you'll never know if you don't try....so easy maaaaaa...shame on me!