Free, no call
A 48-hour teardown of one spreadsheet you rely on
Pick the workbook you would least like a lender to open. Two business days later you have a written report: every hardcode listed, the headline number traced back to its inputs, and its checks tested. It costs nothing.
How it goes
- 01
Ask
Your name, a work email, and what kind of workbook it is. A person replies within one business day with where to send it and what to leave out.
- 02
Send the file
De-identified: no patient names, dates of birth or record numbers. A model never needs them, and the guidance on what to strip is one page.
- 03
48 hours
It is recalculated with a real formula engine. Every hardcoded number sitting in a formula is listed. The headline figure is traced back to its inputs. Its own checks are broken on purpose to see whether they notice.
- 04
The report
One or two pages: what is wrong, what it would cost you if it stayed wrong, and what it would take to fix. Yours to keep whether or not you ever buy anything.
What a teardown usually finds
- A typed number inside a formula that stopped following the inputs months ago
- A total that is a range one row short of the data
- A check that compares a cell with itself and reads OK forever
- A blended rate — one DSO, one average fee, one per-visit revenue — that is right on the year and wrong every month
- A tab nobody opens that feeds a number everybody reads
The routine is written up in full, so you can run it yourself first: how to check a financial model you didn't build.
Why free
A written teardown shows you the work better than a sales call would. If the report is useful and you want the file rebuilt, the plans are month to month. If you fix it yourself, good. Nobody follows up more than once.
What happens to a file you send, who can see it, and how to de-identify it: how your data is handled.