Final Fantasy Hacktics

Hi guys, I'm really wanna know how to extract sprites sheet about character, ability (skill) from ffta to another format like png, ... that will have me to edit them, or use it on my own project. But i don't know how to do it, i'm do all the searching but i can't understand. Please help me where to start . All I see is the Hex code, is there any tool where you put the hex code and it convert it to sprite sheet !
Thank you very much !

Hello, it's me again. I've created a topic but it's deleted by admin or mod( i guessed because it's my false not to read the rule ) . So i create this topic again to ask you for more detail.
I've played ffta and ffta A2 on my nintendo 3DS and recently is fft revenant wing and 1 thing i love about all of these game is the pixel art. And I want to use their art for my project but i don't know how to read or extract them. i already wandered around tutorial topic in forum but i don't know where should i start first to learn how to extract or edit the art i want. Could you give me more specific guide ? Thank you . 

I've played ffta and ffta2 and very interested in their art ( character design, skill system, ... ). So, after 2 days search on the internet about hacking rom NDS , i found a software name Tinke and started extract the rom but i can't file any folder contain any image , all i can find is overlayer,...... and can't be open

Although, i newbie in hacking rom but i really want to extract those graphic for my personal project . The last thing i do in google is " ffta hack " and they lead my to this forum, can express my emotion but finally i can come to the right place. Hope to get your answer soon, thank you very much