Finance & operations · v1.0.0

SheetAudit

Spreadsheet Formula Auditor

A local static first pass for formula risks—not a correctness certificate.

For workbook owners who want a transparent static review of an Excel copy before a model handoff. The scanner reads formulas without changing or calculating the workbook.

Get SheetAudit · $15 All five · $49

One-time USD source-pack license. Manual delivery, not a web app or AI subscription.

What the tool actually does

Flags #REF! tokens, explicit/cached errors, static dependency cycles and external links.
Reports unsupported references instead of silently treating them as safe.
Adds narrow review heuristics for volatile functions, adjacent SUM gaps and hardcodes between formulas.

Bring: A trusted .xlsx workbook copy. Python plus openpyxl is required.
Get: JSON findings with stable IDs and sheet/cell context; optional finding-linked agent narrative.
Without a model: The complete static scanner and a deterministic findings brief; no model required.

Small, invented example—not a customer result

Synthetic workbook: planted-faults.xlsx
Model!D2 / D3   static dependency cycle
Model!E2        #REF! token
Model!B6        possible omitted SUM cell (heuristic)
10 findings: 3 error, 7 review; not a full audit

Illustrative excerpt from the shipped synthetic fixtures. A successful example is not an accuracy benchmark.

See the CLI workflow

python3 scripts/sheetaudit.py scan workbook.xlsx --out scan.json
python3 scripts/sheetaudit.py draft scan.json --out brief.json

Where SheetAudit stops

Static audit only: no formula calculation, automatic fixes, financial assurance or complete correctness check. Named/dynamic/structured/whole-column references are flagged, not resolved; ranges cap at 10,000 cells. Heuristics may misfire.

Tested on Linux/Python with small synthetic inputs. Customer workloads, Windows/macOS, agent auto-install/discovery and every host version are untested.

In the download

Actual Skill recipe and deterministic Python engine/validator
English README, input fixtures, reference outputs and executable unit tests
Personal/internal commercial-use license; client outputs are allowed, source-pack redistribution is not

Python 3.10+ is required. SheetAudit also needs openpyxl. Text-PDF extraction in RedlineBrief optionally needs Poppler pdftotext. Models and third-party runtimes are not included. These are source tools, not one-click desktop installers.

Exact testing scope and alternatives · License, delivery and payment terms