Bill Manager Spreadsheet – Multiplan was one of the first spreadsheets developed by Microsoft. Commercialized in 1982, in principle for computers equipped with the CP / M operating system, it was later adapted to other systems such as MS-DOS, and Xenix. There were also versions of this program for Commodore 64 and Texas Instruments TI-99 / 4A, and Apple II computer families.
The Multiplan worksheet for the Apple Macintosh was the first Microsoft spreadsheet that used Graphical User Interface (the rest was text-based).
Multiplan was the base on which Microsoft Excel was developed, 1 after being sold more than Lotus 1-2-3 for
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