Hello Mohammed -
If I understand you correctly - you are using a QlikView Expressor Input Operator - with a .qvd file?
Currently the QlikView Expressor product can only use .qvx files that are created with the QlikView Expressor Write QlikView Operator.
So if that is what you are trying to do, unfortunately it does recognize .QVD files as input.
Please verify and let me know.