Efficient way to add large numbers of affected objects to change requests?

I have an excel spreadsheet of a little over 2000 objects that need to be added to the affected objects table of a change request. Does anyone know of a way to do this that doesn't involve searching for and adding 2000 individual items? Is there some way to "mass add" part numbers, maybe by copy/pasting them from somewhere? Any help would be appreciated, thanks.