209 IBM DisplayWrite DCA Text File Word Processor DisplayWrite was a word processor software application that IBM developed for the IBM PC and PCjr.DisplayWrite's native file format is based on IBM's DCA (Document Content Architecture) RFT (Revisable Form Text) specification, but with additional structures. Text 1 Digital Preservation Department / The National Archives 02 Aug 2005 01/2024 (v.118): Added Internal signature and description. 25 Apr 2024 x-fmt/148 PUID dca File extension 2302 IBM DisplayWrite DCA Text File Absolute from beginning of file, magic bytes: ..á... â...Q.. 1 Absolute from BOF 0 0 0005E103000020E2050001510100