Import/Export Attachments with Attachments for J2XML.
This is a plugin of J2XML 3.7 which allows you to export/import attachments. Attachments by Jonathan Cameron
Please install the main app 'J2XML 3.7' before exporting/importing data.
J2XML Attachments 3.7.0 
J2XML Attachments 3.7 Plugin requires J2XML 3.7.198 or above to work properly.
J2XML Attachments 3.0 Plugin requires J2XML 3.2.8 or above to work properly.