RFT

RFT (Revisable-Form Text document) is a word processing file format which forms part of IBM's Document Content Architecture (DCA).

File Information
RFT files begin with the hex values

Software

 * MS Office RFT Converter

Links

 * DisplayWrite 4 Technical Reference

Sample files

 * https://telparia.com/fileFormatSamples/document/revisableFormText/