The "Item-List File" Format:
The first integer gives the number of items in the file. Then all the items are defined afterwards.
The items are defined like this:

[NAME],[BMAP NUMBER] [MODEL NUMBER] [TYPE] [DAMAGE] [DEFENSE] [ADDHEALTH] [ADDMANA] [ADDSPEED] [REQLEVEL] [VALUE]

Here's an example, that creates an axe, and an armor.
2 Great Axe,0 0 0 50 0 5 0 2 10 120 Gothic Plate,1 2 1 0 80 0 40 50 15 300
Some of the things, such as model number and bmap number, might need to be changed to fit your game project.