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Tony Christopher De Jonker

( Tony De Jonker )

Independent Business Consultant - Excel developer - trainer - Freiberuflicher Excel Berater und Trainer - Zelfstandig Business Consultant annex Excel ontwikkelaar/trainer


Tony De Jonker is pricincipal of De Jonker Consultancy and offers finance support, Excel development and training to national and international clients. He is host and co-founder of the annual Excel Experience Day, Excel Expert Day, Amsterdam Excel Summit and speaker at the annual Office TrainerTage in Lucern and the Excellent Days  in Munich. Tony offers a range of Excel related training courses such as Master Class, Dashboards, Investment Analysis, Cash Flow Forecasting, Financial Modelling and InfoCharts based on more than 38 years of spreadsheet & business experience.

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