November 2025
Intermediate to advanced
207 pages
6h 14m
English
Content preview from Excel at 40
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In the Beginning…
My first spreadsheet experience was Microsoft Multiplan running on a TI-99/4A computer. I was in South Bend, and after class, I would drive over to Tenex Computers where I would process returns for the mail order business. The owner of the company showed me Multiplan and I was hooked. Later, I moved on to Lotus 1-2-3, and then in the mid-90’s switched to Excel.
I asked people on LinkedIn to share their first spreadsheet memories:
A surprising number started in SuperCalc: Bob Umlas, Baljit, and David K. Berntsen. Lotus 1-2-3 was the first spreadsheet for Paul Perrault, David Pedre, Chet Shannon, Kannan.N and Ernie Johnson. Guillermo J W used Quattro. Randy Burgess remembers starting in Excel.
Three gurus got their start working ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.