IPTC message format
From Just Solve the File Format Problem
The IPTC message format is a format established by The International Press Telecommunications Council for interchanging of text-based data in the news industry. It has various specifications for the use of streams of ASCII characters including various of the C0 controls range. The format is also known as IPTC 7901. ANPA-1312 is a similar American system. (IPTC is Europe-based.)