2567 Wordcraft Chapter Files Word Processor Files from Wordcraft word processing software from the 1980s, which was made for IBM XT and Commodore 64. Documents created with this software contained at least 2 files, an 'index' file with extension .doc and chapter file(s) with extension .001. 1 Digital Preservation Department / The National Archives 07 Jul 2022 07 Jul 2022 fmt/1723 PUID 001 File extension