True if the connection to the specified data source is maintained after the refresh and until the workbook is closed. The default value is True. Read/write Boolean.
Remarks
You can set the MaintainConnection property only if the QueryType property of the query table or PivotTable cache is set to xlOLEDBQuery.
If you anticipate frequent queries to a server, setting this property to True might improve performance by reducing reconnection time. Setting the property to False causes an open connection to be closed.