With this feature, all records published by a BioCASe web service can be dumped into a single archive file. If a web service supports more than one schema (that is, several schema mappings have been created), such an archive can be created for each schema.
If you want to convert an ABCD2 archive into DarwinCore Archive(s), you can try the DwC Creator (currently only available as a separate tool). To find out more and download this tool, please go here.