*that only microsoft has access to.

These guys puposely obscure controls and understanding of these products 100% to prevent you doing a port.

Just go open a microsoft word doc in the browser and look at the dom.

Despair! Horror!

Especially when there are three different versions, and each has a different team, and they all can work together at the same time. Crazy amount of tech supporting it that breaks a humans context let alone a models context.