Office Open XML M Annex M. (informative) Differences Between ISO/IEC 29500 and ECMA-376:2006 M.5 VML M.5 VML All VML schemas have been removed. Subsections M.6.1 Shared – Bibliography M.6.2 Shared – Custom Properties Variant Types M.6.3 Shared – Math M.6.4 Shared Simple Types Last updated on March 14, 2025