General Exchange Format was created in 2001.
GPS eXchange Format was created in 2002.
PDF means Portable Document Format.Portable Document Format (PDF) is a file format created by Adobe Systems in 1993 for document exchange.
Drawing Interchange Format or Drawing Exchange Format.
General format= AC + CD -> AD + CB
The purpose of the general format and layout is that it gives you a standard procedure.
From what i found CXF "Color Exchange Format" also "Chemical Exchange Format. Those are the only two i can find. I hope that is what you are looking for.
PC Format was created in 1991.
Non-Format was created in 2000.
Fysisk Format was created in 2008.
Anamorphic format was created in 1953.
Negative Format was created in 1996.
Linux Format was created in 2000.