ISO/IEC 29500-2:2021

Document description and processing languages - Office Open XML file formats - Part 2: Open packaging conventions

ISO/IEC 29500-1:2016

Information technology - Document description and processing languages - Office Open XML File Formats - Part 1: Fundamentals and Markup Language Reference

ISO/IEC 29500-4:2016

Information technology - Document description and processing languages - Office Open XML File Formats - Part 4: Transitional Migration Features

ISO/IEC 29500-3:2015

Information technology -- Document description and processing languages -- Office Open XML File Formats -- Part 3: Markup Compatibility and Extensibility