Excel formula auditing add-in

Audit any Excel model with confidence.

Trace formula logic, surface hidden errors, and x-ray an entire workbook in minutes, right inside Excel.

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For Microsoft Excel on Windows: 2016, 2019, 2021 & 365 · No data leaves your machine

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Used by analysts in banking, private equity, Big-4 audit & corporate finance

Investment Banking
Private Equity
FP&A
Big-4 Audit
Consulting
Corporate Finance

The problem

Every model hides a landmine.

Native Excel can find these, but slowly: one cell and one sheet at a time. On a real model, that’s how errors slip through.

Broken precedents you can’t see

A mistyped reference still returns a number. Native tracing checks one cell, on one sheet, at a time.

External links that silently change numbers

A link to a file you forgot about updates your model overnight. Edit Links misses links hidden in names, charts and validation.

Hardcodes buried in formulas

A magic number pasted into a formula breaks every scenario downstream, and nothing flags it.

What it does

Four ways to trust your model.

Explore precedents & dependents

Open an interactive drill-down tree of everything that feeds (or depends on) the active cell, across sheets, ranges and named ranges (Ctrl+Q / Ctrl+Shift+Q).

Interactive, step-into tree
Finds range & named-range dependents
Understand any formula instantly

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Model Check

One click produces a full-workbook health report: a per-sheet detail table plus a scorecard of errors, circular refs, broken links, hardcodes, dead cells and more (Ctrl+Shift+R).

Whole-workbook x-ray
Counts 10+ risk categories
Lists hidden & very-hidden sheets

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Cell Map

Colour-code every cell by type (inputs, formulas, cross-sheet and external references, hardcodes) to see a model's structure at a glance. Reversible in one click (Ctrl+Shift+M).

Colour by cell type
Editable legend
Plus AutoColor font conventions

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Inconsistent Formulas

Scans the sheet and lists cells whose formula breaks the row/column pattern of their neighbours (the classic overtyped mistake), tuned to keep noise low (Ctrl+Shift+I).

R1C1 pattern comparison
Ignores legitimate exceptions
Catch one broken cell in a copied range

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Better than built-in

Formula Audit XL vs native Excel auditing

Excel’s built-in Formula Auditing tools are fine for one cell. Formula Audit XL works across the whole model.

Capability	Formula Audit XL	Native Excel
Whole-workbook health report		no
Explore precedents/dependents as a tree		One-cell trace arrows
Finds dependents via ranges & named ranges		no
Detect inconsistent (overtyped) formulas		Per-cell warning only
Audit every defined name		no
Colour-code cells by type		no
Jump straight to the cell from a result list		no