[FE7] How i can edit the letters/characters/font?

I can not make a good spanish hack without the “ñ”, “á”, “é”, “í”, “ó” and “ú”… (?
Anyone know where the graphic is? I already looked for it with feditor in the compressed graphics so I assume that it is an uncompressed graphic but I have not the slightest idea of where it could be.