John Dumoulin, Microsoft Office Specialist World Champion for Excel 2016




About this tutorial:

Video duration: 00:04:49
John (Jack) Dumoulin of Woodbridge, Virginia, USA, topped 560,000 competitors from 122 countries to become the best in the world at Excel.

Certiport ( is the leading provider of learning curriculum, practice tests, and performance-based IT certification exams to open up academic and career opportunities for learners.

Post Author: OfficeTutes.com

Apple lover, ICT and LEAN consultant, MS Office lecturer My other website with video tutorials - Tutorials, guides and news for iPhones and iPads