Hmm well i do it with a very complicated way... Because i dont know another XD But if you wana hear anyway, here it goes:
1. Extract the Data.GRF file in the Ragnarok Folder, best with>this file
(the middle one). It should creat a new folder in your ragnarok folder called Data.
2. Download the first program on the same page, its for Viewing Sprites... They should be in C:/Programms/Gravity/Ragnarok/Data/sprite/ from that point an use point 3.
3. Go to this
page and go to View>Encoding>Something>Korean It has to be on Korean so you can properly view the names of the file... At least you'll need this if you extract the data.grf of kRO or iRo im not sure about euRo though. I use kRo. Anyway, look through what it says on that page. when you find something you'd like, copy the name and go to Search in the data/sprite folder. Its bets if oyu search from there so the search is limited to just that folder. Of course, since the folder is a bit older, its better not to search for the names of the sprites, but the folder the weapon is in, since most weapons are updated already and ordered in a new way. So if you are looking for Male BS sprites, go look for that folders name, search for it and then look through that folder for the sprites. I hope its understandable :o
4. Since you cant view files writen in korean letterns, best is to copy the file to another folder outside of the data and rename it... if ur too lazy just write some shit like "o.o" or "sdfas" what ever. Then you can open it with the sprite viewer i suggested before.
For more questions please ask ;o (If you need screenshots for example XD)