By Hiran de Silva Let’s start with a simple, almost innocent question: “Can you build a budgeting workbook for 400 departments?” Almost everyone in the Excel world...
Author - Hiran de Silva
The Oz “Friends Expenses” Demo (and Why Everyone Missed the Point) Excel education is broken — but it’s nobody’s fault.This is Part 2 of the series, where we stop...
Part 1: The Pyramid, the Purple Square, and the Spray Gun This is the opening sound-bite for a series of demonstrations: Excel education is broken — and it’s nobody’s...
Not Wrong — But Already Superseded By Hiran de Silva For over two decades, the same five criticisms of Excel have been repeated in enterprise contexts: Scalability Reach...
(And It Was Obsolete the Day It Arrived) By Hiran de Silva Let me explain what I mean by obsolete, because I know that statement raises eyebrows. At the time Power Query...
—or why Power Query dazzles enthusiasts but fails the generals By Hiran de Silva This piece is a response to a recent LinkedIn post by Richard Nero, where he observed a...
Transparency, Relevance, and the Two Worlds of Excel By Hiran de Silva After more than forty years of spreadsheets in business—and nearly as long for Excel...
What I’m doing now, with these Excel challenges, is not accidental.It’s not random.And it’s definitely not content-for-content’s-sake. It’s strategy. The Problem I’m Pre...
By Hiran de Silva Earlier today I shared a preview of the Friends Expenses Challenge with a number of people on LinkedIn. My expectation is simple — and deliberate. Some...
Multi-Spreadsheet · Multi-User · Enterprise-Scale Thought Experiment By Hiran de Silva Background This challenge is inspired by a request from Ellen, who asked whether...

