QAD Data Warehouse Designer supports two types of xml file construct. The normal xml standards have the data in the xml file and the table definitions in a separate xsd (xml schema definition) file which is only required when the table is being created or when the xml file is being validated for form. An alternate standard is used by Microsoft. This second standard is an in line definition which produces one file which contains a Schema element in the data stream where the column names and their approximate data types are defined.