Charlie Ellis

Principal Program Manager @ Microsoft

Charlie re-joined the Excel team as a Principal Program Manager in January of 2016 to lead work on new analysis scenarios. In his previous Excel tours-of-duty in 2007 and 2010, Charlie led the team of Program Managers responsible for core spreadsheeting and BI, and was responsible for the design of features from the “big grid” (1M+ rows x 65k columns), to table references, new functions, new cell & table styles, slicers, and more. In-between, Charlie worked as Director of Program Management at EnergySavvy, a startup in the energy space, where he designed and helped launch Optix Quantify, the first solution to analyze the real-world impact of energy efficiency programs by continuously monitoring and analyzing energy usage data. Charlie has a BA in Computer Science from Swarthmore college.