Last Tuesday marked the 40th anniversary of Excel, one of the most powerful and influential tools ever created by the global software industry. When Microsoft’s now-legendary spreadsheet program was born — originally for Apple’s rival Macintosh computer — it wasn’t the first of its kind. Its predecessor, Lotus 1-2-3, still dominated the market.
What began as a simple, focused tool for accountants and bookkeepers evolved into a global powerhouse that helped drive the personal computing revolution. From students to CEOs, from startups to governments — Excel is now used by some 800 million people worldwide.
What is less known is that a decisive share of this phenomenal success — which has earned Microsoft billions over the years — belongs to hundreds of engineers in Excel’s Israeli development center in Herzliya, and to the two people who lead it: Tamar Tzruya Bar-Zakai, 54, and Yair Helman, 56. The pair, among Microsoft’s longest-serving and most senior executives (Helman has been with the company for 28 years, Tzruya for “only” 16), both live in Even Yehuda and have played a key role in transforming Excel — especially over the past decade — from a technical, even dull spreadsheet into a dynamic online platform now undergoing a revolution through artificial intelligence.
Yair Helman, who studied computer engineering at the Technion, now leads Excel’s Core Engineering team at Microsoft’s Israeli development centre.