Thanks you both for your answers, well, if i extract the images into png, edit and rename them, it works. But in the case of extracting into bmp and do the same procedure, looks so bad, pixelated. Nevertheless, for our image editor, work with bmp images is easiest than png. Is there any specific method of extracting the images into bmp? Tested with asmodean tool and garbro, aetool don't seems to support the format.