Open the internal DB and click on Export. It will save the data in your controller Flash.
After that open maintenance tab and click on copy file. Select the right file and download it in your local drive.
Now the file is in your local drive. For use it in different controller yo have to follow riverse process.
Means In maintenance tab under copy file select FTP or TFTP server as source and flash as a destination and upload the file.
After that in go to internal DB and click on import. Put your file name which you stored in flash.[this is case sensitive]
Thats all.