An illustrative method imports configuration data used by a server that supports electronic gaming machines (EGMs). Configuration data is used by operational software of the server that supports EGMs in a server-client relationship and is stored in accord with a first data structure template that defines records having fields that contain information of the configuration of each EGM. Configuration data stored in fields of records in accord with the first data structure template is automatically transferred to corresponding fields of records in accord with a second data structure template used by new operational software of the server by migration software.