- Robert F. Ryan, MBA, CPA is an independent business consultant, educator, writer and finance leader in a Fortune 50 multinational company. He has a passion for simplicity, quality, efficiency and a unique ability to explain things to people so they understand quickly and thoroughly. He's worked with spreadsheets extensively for almost thirty years including VisiCalc, Lotus 1-2-3 and Excel.
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Want to quickly learn more about Excel from one of the best? If so, please be sure to check out the 2011 Challenge: 30 Excel Functions in 30 Days being presented by Debra Dalgleish. Debra is the author of Contextures.com, … Continue reading