Rich Text Format Directory (.rtfd file type)

List of document markup languages

Comparison of document markup languages

Revisable-Form Text (RFT), part of IBM's Document Content Architecture (DCA)

TNEF, Transport Neutral Encapsulation Format, the Microsoft Outlook default message format

image rich text format

define rich text format

wikipedia rich text format

weblio rich text format

kotobank rich text format

jisho rich text format