~all real world MS Office docs are OOXML Transitional, which lets MS put the fun stuff in an ever mutating vendor extension. so they do.
to my knowledge, nobody anywhere has ever used OOXML Strict for real work. does anyone know real world examples of OOMXL Strict in the wild?
@davidgerard Yeah, probably also the reason the Danish experiment of ditching Office failed, proprietary extensions to the ECMA rubber-stamped “standard”