Setting BLOB options
In this group of options you can determine whether BLOB fields are not to be extracted, extracted as strings, or extracted into a separate file (available for DB2, InterBase/Firebird, MS SQL, Oracle destination servers). If the latter is selected, you also need to specify the File name (the *.blo file where the BLOB data will be stored) and the location of the file on your local machine using the button.
Check this option if you wish to compress the file containing BLOB data.
Define the desired compression level to be applied for the file: None, Fastest, Default, Best.
Click the Next button to proceed to the Selecting fields to export step of the wizard.