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Individual Training for Lotus 1-2-3 is an interactive computerized training lesson for Lotus 1-2-3 Release 1A and Release 2. Individual Software also produced a number of other training programs such as Professor DOS.
Lotus 1-2-3 was an early spreadsheet application available for MS-DOS. It became extremely popular in the late 1980s, displacing the former leader VisiCalc. Lotus had difficulties adapting 1-2-3 to the Windows environment, and was overtaken by Microsoft Excel. Spreadsheet functionality was also included in Lotus Symphony. Later versions were included in Lotus SmartSuite.