Excel will not tell you that someone typed over the formula.

Two Excel task panes that read the grid the way an auditor would. One finds the numbers that should have been calculated. The other finds the layout choices that make Copilot answer confidently and wrongly.

Q3 forecast.xlsx 2 findings

	B	C	D
4	Q3 forecast — draft
5	Region	Units	Revenue
6	North	120	3,600
7	South	140	4,200
8	East	90	2,700
9	Total	350	10,500

D7 4,200 was typed over =C7*30. The total still adds up, so nothing looks wrong. Hardcoded Value Detector
B4 A merged banner row sits above the headers. Copilot reads it as the header. Copilot Readiness Scanner

Two add-ins

Hardcoded Value Detector

Finds two things Excel does not: numbers typed over formulas, and constants buried inside formulas. It shows you each one in place, explains what it displaced, and can put the formula back. Undo is free in every tier, always — an add-in that writes to your workbook but charges to reverse it would be indefensible.

Host: Excel task pane
Free: Check and explain the active sheet. Undo.
Paid: Whole-workbook scan, guided fix, CSV and Markdown export
Price: £3 a month, or £25 a year

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Copilot Readiness Scanner

Scores the active worksheet for Copilot readiness and explains, for every finding, why Copilot cares. Merged cells, banner rows, numbers stored as text — the things that quietly make Copilot's answers wrong rather than absent.

Host: Excel task pane
Free: All of it. Every scan, every explanation.
Paid: Nothing
Price: No charge

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Buying from App Garden

Paddle is the merchant of record for every paid add-in here. Paddle takes the payment, issues the invoice and handles the tax, and is the seller named on your receipt.

Prices exclude tax, which is calculated at checkout from your location.

Full refund within 30 days of any payment, no reason needed. Subscriptions renew until cancelled, and cancelling is a reply to the receipt or an email to support.