Yes, I have complete and exacting info for how FFVI's data is arranged. What do you need to know exactly?
All spells in the game are one table (including sub-ranges for regular magic spells, esper summons, blue magic, and enemy-only spells).
This is distinct from the list of items (a couple of items are implemented with spells, i.e. they have a unique spell that is fired off when the item is used, but that is really an exception and not the rule).