Make Access again able to import / export / transform as many file types / legacy files like it used to
Ability to open and convert .mdb was removed in Access 2013. Put that all back
Definitely agree! Access should access data in all kinds of formats. A major issue is not being able to convert old stuff (how can people upgrade?) ... and information that is in formats that were never supported (that I know of) such as Microsoft Works.
Also, Access should be able to use XML hierarchical formats.