Maybe its worth looking at this from the other side...rather than exporting, create a link back from your Excel file to the db.
I found the following help notes in Excel which may be relevant:
To bring external data into Microsoft Excel, you must:
· Have access to an external data source. If the data you want access to is not on your local computer, you may need to see the administrator of the external database for a password, user permission, or other information about how to connect to the database.
· Install Microsoft Query. Microsoft Query is an optional feature for Microsoft Excel and includes the Query Wizard. To create a query in Microsoft Query, you must install it separately. For more information, click .
· Install an ODBC driver for your data source. An ODBC driver is required to retrieve data, including data in Microsoft Excel. To run a query file, you do not need to install Microsoft Query, but you must have the appropriate ODBC driver installed for your data source.
Unless you changed options when you installed Microsoft Query, Setup automatically installed three ODBC drivers that allow you to retrieve data from dBASE, Microsoft Access, and Microsoft Excel. In addition, you could have installed other ODBC drivers at that time. For a list of the available ODBC drivers that you can install, click .
If you did not previously install an ODBC driver for a data source that you want to use, you must install it separately. For more information, click .