Opens or switches to the mail merge data source.
Syntax
expression.EditDataSource
expression Required. An expression that returns a MailMerge object.
Remarks
If the data source is a Word document, this method opens the data source (or activates the data source if it's already open).
If Word is accessing the data through dynamic data exchange (DDE) — using an application such as Microsoft Excel or Microsoft Access — this method displays the data source in that application.
If Word is accessing the data through open database connectivity (ODBC), this method displays the data in a Word document. Note that if Microsoft Query is installed, a message appears, providing the option to display Microsoft Query instead of converting data.