By default the datafile are in Access 2000 file format.  If you really want
to convert the file format then open the database in design view, go to
tools, Database Utilities, Convert Database and select the option to convert
to 2002 file format.
In most cases, you can use an Access file that implements an Access 2002 or
later feature in Access 2000 without any problems. However, if you open an
Access 2000 file in Access 2002 or later and create a Visual Basic procedure
that uses an object, function, property, method, or argument that is
available only in Access 2002 or later, you'll receive a compile error when
you open the Access file in Access 2000.

in access.....goto Tools->options
under "advanced" tab u will find "default file format" ....chg it t
access 200

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Raja