For converting the database from the old one, it is possible, but it would be missing a lot of data then. Where would you get values for the damage columns, what spells they cast, what abilities they have, etc? Just put 0 for everything and it only stands there?
Also, the spells will be a number list of what they can cast. An Example
982 1919 17
That would let it death touch, cast guide journey and loh (If my numbers are right).
