Here's what I've been able to figure out so far:
- - at least for EQ2, the first large (often negative) number is the item ID number, but converted from a 64-bit (unsigned) value to a 32-bit signed value
- e.g., 2871812143 -> AB2C602F -> -1423155153; to reverse, take the (DWORD) 32-bit signed value, convert to hex, convert to 64-bit QWORD, AND it with 00000000FFFFFFFF, convert back to decimal (simple, huh?) :P
- - the last value before the
:>
is a bit-flag:1: No Trade
2: Unique
4: No Rent
8: Soulbound
16: (not used ?)
32: Quest Item
64: No Sell
128: Bind on Equip