ASCII, UTF-8 — plain text formats Amigaguide .doc for Microsoft Word — Structural binary format developed by Microsoft (specifications available since 2008 under the Open Specification Promise)[1][2] DjVu — file format designed primarily to store scanned documents[3] DocBook — an XML format for technical documentation HTML (.html, .htm), (open standard, ISO from 2000), in combination with possible image files referred to.