Sophie Marchand is a business modeling expert with a Master Degree in Corporate Finance. She also is a CPA (Certified Profesionnal Accoutant) and an Excel MVP (Most Valuable Profesionnal). She is the founder of Le CFO masque (lecfomasque.com) and she writes french blog posts about Excel and Power BI on Le CFO masque blog, which is called Mon Cher Watson. She offers training sessions and builds financial models, dashboards and management tools for medium and large companies.