This is a step-by-step guide on basic sprite editing. For illustration purpose, I will convert the mid headgear; "
Angel Wing Ears" to a pair of "Amazing Wings".
1. Download and install the necessary programs below.
a. GrfBuilder (to extract data)
b. SPR_Conview (to preview sprite images)
c. ROUnicode (convert Korean language to Unicode format)
d. Free RAR Extract Frog (to unpack .rar files)
e. Java SE Runtime Environment (to run .jar files; i.e. ROUnicode)
Download GRFBuilder, SPR_Conview and ROUnicode Download Free RAR Extract Frog Download Java SE Runtime Environment2. Find the sprite you want. Listed below are some of the popular sources of sprites.
RUNE Latest eAthena HeadgearsFor illustration purpose, I will download
Amazing Wings, created by J Perry. You may want to preview the amazingwings.spr file using SPR_Conview.
3. Using GrfBuilder,
Open sdata.grf (C:\Program Files\Ragray\sdata.grf)

4.
Extract All the data to a temporary folder. (C:\MyTemporary).

5. Run ROUnicode and convert data from Korean language to Cp1252.

* If you do not see Korean characters, then you will require some setup to be able to display the characters. For Windows Vista (it should already support Korean language by default). For Windows XP,
check this. For other platforms,
check this.
Before conversion (i.e. still in Korean language)

After conversion (i.e. in Cp1252/Unicode)

6. Identify the headgear which you want to change the sprite (i.e. Angel Wing Ears). Using
RO Sprite Bible, obtain the Unicode file name of Angel Wings Ears.

7. Using SPR_Conview, confirm that
¿©_õ»ç³¯°³±Í.spr is indeed Angel Wings Ears (C:\MyTemporary\data\sprite\¾Ç¼¼»ç¸®\¿©).

8.
IMPORTANT Inside amazingwings.rar, there are two files- SPR and ACT. You will need to duplicate these files (i.e. 4 files in total). After that,
Rename those files from amazingwings to the followings:

¿© represents FEMALE
³² represents MALE
õ»ç³¯°³±Í represents Angel Wing Ears
9.
IMPORTANT Create the following folders:
C:\Program Files\Ragray\data\sprite\¾Ç¼¼»ç¸®\¿©
C:\Program Files\Ragray\data\sprite\¾Ç¼¼»ç¸®\³²

10. Copy the renamed files and paste them in the respective folders.

11. FINITO! Just load RagnarokOnline, and equip an Angel Wing Ears[0] or Angel Wing Ears[1] or Angel Wing Ears[1] with any headgear cards; and it should appear
on your screen only as Amazing Wings instead. (Other players will continue to see it as a normal Angel Wing Ears)
TROUBLESHOOTINGClick here** Special Thanks to Cass for teaching me about Sprite Editing.