Related parameters

Hello everyone!!!!

Can anybody help me??

I have a list of numbers and related contracts(the number-contract couple is unique) in excel sheet(the list is not constant, it's changing according to the case) and an sql select, which brings the different data about the specific number-contract couple. Is it possible to create a parameter and enter (copy-paste) or import from excel the number-contract couple's values during the executing of the report? And how to do it?