You must install and configure drivers for the ODBC data source you're accessing. For example, to import data from an SQL database using ODBC, you must install and configure an SQL ODBC client driver.
Maybe the drivers are already on your computer.
To see the drivers that are already available on your computer:
Windows: In the Windows Control Panel, choose Administrative Tools > Data Sources (ODBC), then click the Drivers tab.
In Windows XP, Administrative Tools appear in the Performance and Maintenance category.
Mac OS: Launch the iODBC driver manager.
OpenLink ODBC Administrator 3.52.1 is available from OpenLink Software, and Apple ODBC Administrator 1.0.1 is available with Mac OS 10.3.
See the help file for more details and steps to take to connect to a external datasource from within FileMaker.