The following fields:
damage (if it is actually interpreted as damage)
range
no. of effects
area of effects
are interpreted thusly:
(val % 1000) + (path rating) * RD(value/1000).
Thus, 2005 = 5, plus 2 per point of magic skill.
4010 = 10, plus 4 per point of magic skill.
etc.
But I knew that already from my experience with spell modding.
The attachment includes the table with byte/word entries for every spell
. So go ahead and download it.