Items options are defined in IT0.ull or M_6.tdb ( Client side )
and 0 (Server side)
For the 1st item in IT0.ull :
Relevant Infos start at byte 63 (Offset 0x003e ) which define options for level 1 item :
2 bytes : AA or AD
2 bytes : Strength
2 bytes : Dex
2 bytes : Int
2 bytes : Attack Power for weapons or Defense for Armors
2 bytes : Value to add to Attack Power to get the max attack ( 0 for armors)
2 bytes : Ice Eles
2 bytes : Fire Eles
2 bytes : Light Eles
The above series will repeat 9 more times defining options for all levels till 10th
Each item is defined by a total of 242 bytes