There are 6 documents in this zip.

Core Specification
Parking Lot
Advanced Decimal Supplement
Advanced Delimited Formats Supplement
Bidirectional Text Supplement
Date and Time Supplement

https://forge.gridforum.org/sf/docman/do/viewDocument/projects.dfdl-wg/docman.root.current/doc13725?_message=1155141987468

Mike Beckerle
STSM, Architect, Scalable Computing
IBM Software Group
Information Integration Solutions
Westborough, MA 01581
voice and FAX 508-599-7148
home/mobile office 508-915-4795