Dear Aashish,
In ODIN Client version, there is BULK ORDER facility, which i use regularly.
U have to enter orders at first manually, then save that files containing all clients codes. Whenever u want to place orders, it will be done in fractions of seconds. The file is generating in ODIN/upload folders. Pl note that this file is having .upl extension, and is not XLS file.
If this .upl file structure is find out from any source, u can also add orders through XL file as well as any Progarmme files. However if u find any solution from any where, pl let me inform soon. I am also watching the orders throgh XLS file, but however it is being done through BULK ORDERs.
For more discussion, u can call me on 09427560572