Early in my career, I worked nearly 20 years as the CFO of turnarounds and startups. But I eventually got burned out fighting continual struggles with cash flow.
That's when I started to write about Lotus 1-2-3, the spreadsheet software that I'd been using most of the time during the CFO days.
When Excel was about to be introduced for the PC, one of my magazine editors set up a meeting for me to see the product, talk with the developers, and write a cover story about Excel.
So I used the first version of Excel before it was launched. And I had also used the first version of VisiCalc before it was launched.