Excel Technical Review with AI
Let AI do the first pass of your Excel workbooks. Triple-check formulas, references, and catch errors before they cost you.
How it worksFound 3 issues across 6 sheets:
| Severity | Location | Issue |
|---|---|---|
| 🔴 Error | Projections!B3 | #REF! error — deleted reference |
| 🟡 Warning | Revenue!B7 | =SUM(B2:B4) excludes B5 |
Six checks across every cell
The toolkit scans your entire workbook automatically. AI then reviews every finding so you only see what actually matters.
Error Values
Catches #REF!, #DIV/0!, #NAME?, and other error values hiding in your formulas.
Circular References
Maps cell dependencies and detects circular chains that produce unreliable results.
SUM Range Gaps
Flags SUM formulas that skip adjacent data rows — the classic "new row not included" mistake.
Broken Propagation
Spots formulas that break the pattern of their neighbors, like a growth rate that suddenly changes.
Cross-Sheet Anomalies
Checks every cross-sheet reference to make sure it points to a cell that actually has data.
Hard-Coded Values
Finds literal numbers embedded in formula-heavy regions where a formula is expected.
How it works
No setup. No configuration. Just upload your file and ask for a review.
Upload your workbook
Drag and drop any .xlsx file, then press Analyze. Works for workbooks of any size — from a few sheets to fifty.
Watch the checks run
A deterministic engine scans every cell across all sheets, showing each check as it completes — in seconds, not minutes.
Review your report
Get a clean, at-a-glance summary of errors, warnings, and review items. Drill into any finding, or download the PDF to share.
Trusted by finance professionals
From real estate to actuarial analysis, teams rely on TieOut for a faster, more disciplined first pass on their models.
TieOut gives finance teams a fast first pass on the workbook so they can catch those issues before they become real problems. For accountants relying on Excel to make decisions, this is exactly the kind of tool that makes the review process faster, cleaner, and safer.
Trevor McCandless
CEO, Fusion Taxes
In financial modeling work, there are a lot of small technical issues that can create real problems. For finance professionals, analysts, and teams reviewing Excel models, the value is clear. It helps create a more disciplined review process and gives users a practical way to catch issues before a model gets relied on.
Adam Adelstein
CEO, Blue Point Advisory
TieOut's value is purpose-built for the financial model review process. It gives finance teams a focused second set of eyes on Excel workbooks and helps create more confidence before a model is shared, relied on, or used in a transaction.
Charlie M.
Investor
In real estate investing, the model matters. We are constantly looking at different acquisitions and investment scenarios. A small Excel issue can change how a deal looks or create confusion when capital partners are reviewing the opportunity. TieOut TR is a practical tool for review during that process. For anyone building or reviewing financial models, especially in real estate or private investments, having a clean first-pass technical review is valuable. It saves time, tightens the work product, and gives you more confidence before sharing a model externally.
Hunter Lien
Partner, Free Heel Capital
In financial models, the biggest risks are often not obvious. They are buried in skipped rows, broken formulas, hardcodes, inconsistent references, and small issues that can completely change the output. At 7Alder, we review models for transactions, valuations, diligence, and operating decisions. The work requires judgment, but it also requires discipline. Before a model goes to a client, investor, lender, or board, someone needs to know the workbook has been technically reviewed. TieOut was built to make that first-pass review faster, more consistent, and more reliable. It is not meant to replace the analyst. It is meant to give finance teams a better QA layer so they can catch errors earlier, focus on the issues that matter, and have more confidence in the work they are sending out.
Wil Dublin
Managing Partner, Black Loch Capital
The strongest products are the ones that solve a specific, painful problem for a specific audience. TieOut does that by taking a process every analyst, consultant, and deal team understands; manually reviewing Excel models for errors, and turning it into a cleaner, faster, more repeatable workflow.
John Maher
Founding Partner, Victoriam Group
TieOut helps turn model review into a more systematic workflow and gives teams more confidence before sharing or relying on the output.
Stuart Green
What I like about TieOut is that it is not trying to be a generic AI tool. It is focused on technical review, which is where accuracy and clarity matter most. In financial models, the issue is often not the overall structure, it's a small formula break, a hardcode, a missed check, or an inconsistency that can change the output. TieOut gives teams a more efficient first pass and helps reviewers focus their time on the issues that matter. For anyone building or reviewing Excel models, it is a practical way to improve quality control and reduce the risk of missed errors.
Amber Petrak
Actuarial Analyst
Built for sensitive financial models
Your models hold sensitive, material information. TieOut is built to the security and privacy standards financial firms expect — so you can review your work with confidence.
Encrypted end to end
Every upload, analysis, and stored report is encrypted in transit with TLS and at rest with AES-256.
Isolated, ephemeral processing
Each workbook is analyzed in its own isolated environment that is destroyed when the run finishes. Your data is never shared across customers.
Your data stays yours
Your workbook never leaves our servers, and we never sell your data or use it to train AI. Delete any analysis and its underlying file at any time.
TLS in transit · AES-256 at rest · Per-customer isolation · Least-privilege access · Retention & deletion controls · SOC 2 Type II audit in progress with an independent firm. See our Privacy Policy for details.
Catch errors before they cost you
Manual reviews take hours and still miss things. Let AI do the first pass so you can focus on what matters.