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Spreadsheet sprawl: the sign you’ve outgrown your tools

Web Apps · Platforms · 2 min read · 29 July 2026

Every business we meet has one. The Spreadsheet. Seventeen tabs, colour-coding that only Karen understands, formulas nobody dares touch, and a filename like FINAL_v7_USE_THIS_ONE.xlsx. It runs quoting, or scheduling, or stock, or all three. And everyone quietly knows that if it broke — or if Karen left — the business would have a very bad month.

Spreadsheets are brilliant. That’s the trap.

A spreadsheet is the most successful end-user programming tool ever made, and starting your process in one is genuinely smart: cheap, flexible, instant. The problem is that spreadsheets don’t announce when you’ve outgrown them. There’s no warning light. The workbook just accumulates tabs, links, macros and workarounds until one day it isn’t a spreadsheet any more — it’s an unfunded, undocumented, single-maintainer software project that happens to live in Excel.

The symptoms of sprawl

  • One person owns it. Only they can change it, and holidays are scheduled around it.
  • Copy-paste is a process step. Data moves between systems via a human doing ctrl-C, ctrl-V, daily.
  • Version anxiety. “Is this the latest one?” gets asked in meetings.
  • Double entry. The same customer’s details get typed into the spreadsheet, the invoice tool and the email — three chances to typo.
  • Silent breakage. A formula got deleted three weeks ago and decisions have been made on wrong numbers since.

Three or more of those, and the spreadsheet is costing more than software would — the cost is just hidden in salaries, errors and risk instead of appearing on an invoice.

What replacing it actually looks like

Not a huge IT project. The pattern that works: map the process the spreadsheet actually runs (usually two days of asking questions), build the smallest system that runs it properly — one database, one screen per job, accounts for the people who need them — and migrate the data once, cleanly. Modern web apps make this far cheaper than the word “bespoke” suggests, because you’re not paying for the 90% of an off-the-shelf product you’d never use.

What you get back: everyone sees the same live data, nothing depends on one person, the fragile formulas become tested code, and the copy-paste hours come back as actual work. The spreadsheet earned its retirement. Give it a good send-off — then stop running your business on it.