We take spreadsheets for granted, but they were actually an incredible innovation that transformed small business. In this episode we talk about the history of spreadsheets and why they are so important. We cover the first popular spreadsheet program, VisiCalc, which was the "killer app" for the Apple II. Then we talk about Lotus 1-2-3 and why it displaced VisiCalc. We finish with Microsoft Excel and areas where spreadsheets are being stretched too thin.

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