![]() Lotus 1-2-3, first sold by the Lotus Development Corporation in 1982, dominated the mid-1980s spreadsheet market for personal computers (PCs) that ran MS-DOS, an operating system sold by Microsoft. Excel is a popular spreadsheet system, which organizes data in columns and rows that can be manipulated through formulas that allow the software to perform mathematical functions on the data. Microsoft Excel, spreadsheet application launched in 1985 by the Microsoft Corporation. This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives. ![]()
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