I've uploaded a spells_en.txt compatible version of the spell editor to my website ...
http://www.geocities.com/kaiyodouk/
I've not had the time to test it much, but I changed a few numbers in a few spells and they seemed to do what they should inside the emu. I did notice that the casting anim is displayed incorrectly in my editor, but everything else looks ok.
By the way, don't forget that once you've saved out a new spells file you need to copy it to your EQ directory AND your EQEmu directory for it to work
K.