There are something odd in the "effect" column of spell sheet. For example, effect of welcome sign is listed as "magic duel"
I think it simply checks "effect #" sheet for the effect number. If the number is not included in "effect #". it will use the nearest number availiable instead of the correct one. Perhaps we can conclude more effects from the raw data to complete the list.
28: enslave mind(674)/control(384)/Control the Dead(671)/Master Enslave(691) etc
29: charm(685)/welcome sign(862)
111: internal alchemy(809)
112: Kill Caster(91)
196: desiccation(631)/Curse of the Desert(658)
216: Blood Vengeance(744)