If you look at the raw data stored in the .dbf file of the shpfile triplet, you'll probablysee that the value is represented in scientific notation with 18 characters:+1.71000270000E+13This is an intrinsic limitation to the dBase-III+ format. In the famous words of ChiefEngineer Scott -- "She cannae take any more, Captain!"If you want to represent this value in dBase, you'll need to convert the value to string(in Hexadecimal notation it would be 0F8D6908F4CA) or use some other method to eliminate some zeros.- V