Pivot table tutorial excel for mac3/28/2023 ![]() ![]() A few months after the release of Improv, Brio Technology published a standalone Macintosh implementation, called DataPivot (with technology eventually patented in 1999). Lotus Development released Improv in 1991 on the NeXT platform. ![]() This core functionality would provide the model for pivot tables. With Improv, users could define and store sets of categories, then change views by dragging category names with the mouse. A tool that could help the user recognize these patterns would help to build advanced data models quickly. While working on a concept for a new program that would eventually become Lotus Improv, Salas noted that spreadsheets have patterns of data. ![]() ![]() In their book Pivot Table Data Crunching, Bill Jelen and Mike Alexander refer to Pito Salas as the "father of pivot tables".
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