The business runs on spreadsheets that nobody dares change
Signals we hear
- One file is the source of truth and it lives on somebody’s laptop
- Reconciliation is a monthly ritual with a known error rate
- New staff are trained on undocumented conventions
How we approach it
We model the domain the spreadsheet already encodes, migrate the data with reconciliation reports both sides can check, and deliver a system with roles, an audit trail and an export path. The spreadsheet stays available read-only through the transition, because a cutover nobody trusts gets reversed.