Hi John,
Office 2016 came out September 2015 and MapInfo Pro 16 released August 2016.
See this statement from the MapInfo Pro 16 release notes, found here: http://reference1.mapinfo.com/software/mapinfo_pro/english/16.0/MapInfoProReleaseNotes.pdf
MapInfo Pro supports Microsoft Excel ( *.xls , *.xlsx) and Microsoft Access (*.mdb, *.accdb) formats for versions 1997 to 2016. Hope this helps.
Are you having issues with Office and MapInfo Pro?