Spreadsheets are the most successful business software ever made. They’re also where a surprising number of serious operational risks quietly live. The problem isn’t spreadsheets — it’s using them long past the point they fit.
The seven signs
- Only one person really understands “the sheet.” When they’re off, work stops.
- You reconcile the same data in several places. Numbers never quite match.
- Version chaos. “final_v3_REAL.xlsx” is funny until it costs you a decision.
- Manual copying between systems. Hours lost, errors introduced.
- No audit trail. You can’t see who changed what, or when.
- It breaks under growth. More rows, more users, more fragility.
- You’re afraid to touch it. One wrong formula and something downstream breaks.
What replaces them
The answer usually isn’t “a bigger spreadsheet” or a rigid off-the-shelf product — it’s a focused custom application that encodes your process, enforces data integrity, and gives the whole team a single source of truth with proper access control and an audit trail.
You don’t have to replace everything at once. The smart move is to start with the single sheet that carries the most risk or eats the most time, replace that, and expand from there.