How to reimport files to an .dlc File (FS15)

[Hanomaginer]

Good evening guys,
First sorry for my bad english.
I´m trying to edit an DLC from the Farming Simulator,
i already have the DLC open but i dont know how to put it in the normal .dlc type back.Eveerytime when i tried it the programm (quickbms) says that the .dlc file is an empty file
I do this only because there is no way to open the .i3d so i can´t put in the mod folder.
Hope you guys can help me.

[Molson]

Yes I would like to know this to I try to re import and it fails the file is xml and it is smaller is there a switch to force it