How to prevent people copy the excel file from one pc to another pc by using VB code?

[Arun C M]

Hi everybody,

I am not a programer but i always have to use Microsoft excel to communicate with my clients. is there any VB code can be used to prevent my client copy my excel file to other pc? for your information, i have to pass them a excel copy for doing some calculation.

your immediate help is very much appreciated.
thank you very much in advance.

Regards,
Arun C M