Ordinary people (non-programmers) have been doing fairly complex spreadsheets since the 80s. My dad, a cost accountant, was born in 1934 and was a Lotus 123/Qu

Ordinary people (non-programmers) have been doing fairly complex spreadsheets since the 80s. My dad, a cost accountant, was born in 1934 and was a Lotus 123/Quattro Pro master by the late 80s/early 90s.