Take complete control of your spreadsheet audits.
HSAA (High-Stakes Audit Assistant) is a standalone audit engine that examines your spreadsheet files directly — built for analytical managers, controllers, and deal teams who cannot afford formula errors.
- Works with Excel (.xlsx, .xlsm) and Google Sheets files
- Hardcoded number and broken formula risk scoring
- Customizable exceptions engine — you define the audit logic
- Local processing — zero third-party data exposure

Built for high-stakes spreadsheet managers
What HSAA catches before your boss does
A focused audit layer that scans your workbook for the mistakes that destroy credibility.
Universal File Support
Examines Microsoft Excel (.xlsx, .xlsm) and Google Sheets files directly — no add-on, plugin, or extension required.
Hardcoded Values & Formula Errors
Flags hardcoded numbers, broken references, mismatched ranges, and risky lookups before review.
Customizable Exceptions Engine
Retain complete control over audit logic. Edit the exceptions list to define the exact formula rules, threshold errors, and anomalies HSAA inspects — so your audit policy matches your standards, not someone else's.
Fast Audit Runs
Runs a full risk report in seconds, not hours, so you can iterate quickly.
Privacy-First by Design
Files are processed locally by the standalone engine. Zero third-party data exposure, full data sovereignty.
Cohort Feedback Loop
Beta members shape the roadmap and get direct access to the founding team.
Executive Summary
Generates a clean risk report you can paste into emails, decks, or audit files.
LineUpYourDucks Academy: Defensive Spreadsheeting
Master the audit workflows and defensive design techniques that eliminate high-stakes spreadsheet errors before they reach decision-makers.
Defensive Model Design
Build structural integrity directly into your workbooks. Learn layout patterns, input isolation, and formula safeguards that prevent accidental corruption.
Error-Detection Workflows
Master systematic audit protocols. Leverage custom Exception rules to catch logic breaks, hidden overrides, and circular dependencies in complex financial and operational models.
Active Recall Auditing
Train your eye using practical, scenario-based exercises. Turn raw spreadsheet analysis into a deliberate, bulletproof audit habit.
Software + Academy
Choose your access tier
Start as an early co-creator or compare the rates planned for later cohorts and public access.
Beta Cohort 1
Early Access & Co-Creation Tier
Recurring • 50% off full price
Locked-in lowest rate for early co-creators.
- Full access to the HSAA engine and Defensive Spreadsheeting Academy
- Lowest guaranteed recurring rate for life
- Direct input on the feature roadmap and priority edge-case fixes
Requires submitting 1 feedback check-in form per month. Non-compliance across 2 consecutive cycles transitions subscription to Standard Rate.
Beta Cohort 2
Refinement Tier
Recurring • approximately 30% off
Mid-tier rate for the second refinement phase.
Access to the HSAA engine and Academy, with participation in the second product refinement phase.
Standard Access
Full Public Access
Standard Rate • full price
Full HSAA engine and Defensive Spreadsheeting Academy access when public enrollment opens.
All tiers include a 14-day risk-free refund window.
Apply now. Lock in your seat.
Tell us how you work with high-stakes spreadsheets. If you are a fit, we will send your beta license and onboarding link within two weeks.
