[andechs]

Microsoft does a TON of work to make it's applications not only accessible, but user friendly to screenreader and keyboard users.

This is most obvious in the OneDrive online. The selectable list of files is implemented using Layout Grid, and thus is a single tab stop. Arrow keys can be used to navigate the grid and inline actions, and it's a single SHIFT-TAB to navigate up to the multi-selection actions.

There's ARIA controls and interactions that are defined in such a way that a non-sighted user can just hear what "type" of interaction it is and already know how to navigate it.