Every business of a certain size has a spreadsheet that runs something important. Pricing. Inventory. Customer segmentation. Commissions. The spreadsheet started as a quick fix, became the source of truth, and is now the thing one person on the team is quietly nervous about.
Spreadsheets are excellent. They're flexible, fast, and require zero buy-in to get started. The question isn't whether they're good tools. It's whether they're still the right tool for what you're using them for.
Three signals you've outgrown them
One person knows how the spreadsheet works. Not the data — the logic. The conditional formatting, the nested formulas, the colour-coded tabs. If that person goes on leave and the spreadsheet stops working, you have a single point of failure dressed up as a productivity tool.
You're hesitant to make changes to it. A new product, a new region, a new pricing tier — and the response is “let me work out what that means for the model” rather than “let me add a row.” When small changes need careful thinking, the tool is now in your way.
You can't trust the numbers without checking them. Senior people don't quote the spreadsheet's outputs in meetings without first cross-referencing them. The spreadsheet still works, but it's no longer the source of truth — it's an input that needs verification.
What replaces it isn't always a big system. Sometimes it's a small, focused tool that does the one job the spreadsheet was doing — with audit, access control, and the ability to scale beyond a single person's mental model. That's where most of our engagements start.
