Yes - the article is about 1991. Of course there was more than one DOS spreadsheet in 1991. To give you some perspective: Excel for Mac was six years old in 1

Yes - the article is about 1991. Of course there was more than one DOS spreadsheet in 1991. To give you some perspective: Excel for Mac was six years old in 1991, Informix Wingz was three years old, and Lotus Improv was just released. They were already showing Visual Basic for Windows at trade shows and Hypercard on the mac was four years old.