In Access 2007, display the “External Data” tab. Click on the “Access” option.
Use the Browse button to locate the file you want to import the saved import-export specification. Once a database has been specified, the “OK” button will become available. Clic the OK button to display the Import Objects dialog box. Click the “Options >>” button at the bottom of the list of buttons on the right side of the dialog box. One of the options in the “Import” group is “Import/Export Specs”. Check this option. When you click the “Ok” button on the Import Objects dialog box the specification will be imported.
https://www.access-programmers.co.uk/forums/threads/transfering-an-export-import-specification-from-one-database-to-another.172896/