@psfard can you provide us with a sample of the file that would not load and can you tell us what kind of extension it has. From my perspective the built in driver should be able to load them all. But you might try other ones.
You could try and use another driver:
https://mvnrepository.com/artifact/net.sf.ucanaccess/ucanaccess
Next thing you could try is to use Libre Office and see if this can open your database