@mathlover Spreadsheets were the first big success story of the nascent software industry, way back in the late 1970's.
Visicalc was the first one, and made lots of money. Later a new upstart came in, and also was very successful -- Lotus 1-2-3.
Sometime down the road, Quatro Pro joined the fray, and seems to have been named in pure jest to Lotus's very successful program.
Excel came many years later, and it was a Windows application from the very beginning I think.
My first spreadsheets were in Lotus 123, and it was quite interesting. 😋
@design_RG I get it. 😀
I've heard of Excel and Lotus, but none of other spreadsheet software.
I didn't know anything about the period of software/computing history between the late seventies and early nineties until I looked it up online later in life. My parents were doing medical residency at the time, and due to the 36 hour shifts allowed back then, they had no time for anything else between working and sleeping. Thus, they do not know about that time: personal computing for them began with MS-DOS, and my father *still* thinks Gates invented DOS.