Prepare the year-end review file
Hexagone AI anonymizes your ledgers. Claude drafts a synthesis note for the statutory auditor, without ever seeing your clients.
A ledger is a list of who paid whom, how much and when. That makes it the single most identifying document a firm holds, and also the one where an extra pair of eyes would pay for itself. Spreadsheets are the format most anonymization tools handle worst: text-in, text-out systems destroy the structure that makes a ledger readable at all.
How it works
Protect the workbook
XLSX is rebuilt with its sheets, columns and formatting intact, so the protected copy is still a ledger rather than a paragraph of numbers.
Ask for the anomalies
Unusual entries, timing, duplicated references, accounts that move against their pattern. The analysis rests on shape and sequence, not on the client's name.
Keep the audit trail
Every detection and substitution is logged locally and exports as CSV, which is what a supervisory review or a DPO will ask to see.
Summarize the anomalies in the ledger [c.LEDGER_2026] before sending it to the statutory auditor.
What gets masked here
- Client and supplier names
- Bank details and IBANs
- Tax and company registration numbers
- Employee names on payroll lines
- Account references and analytical codes
What you get back
A synthesis note drafted from the real figures, ready to review and hand to the statutory auditor, produced without the ledger being uploaded anywhere.
How accurate is the detection?Questions on this use case
- Does it keep Excel structure, or flatten it to text?
- It rebuilds the workbook. XLSX, along with PDF, DOCX, PPTX and plain text, comes back with the original layout and formatting and only the personal data replaced. This is a genuine differentiator: Microsoft Presidio and most cloud PII services take text in and give text out, so document reconstruction is left to you.
- Do amounts get masked? I need the figures to be right.
- Amounts are a category you control. Switch them off and the arithmetic stays exact while names and account references are still protected; switch them on where a figure is itself identifying, such as an unusual settlement. The choice is per document and persists between runs.
Try it on this exact task.
One week free, no credit card. Nothing is uploaded, so you can run it on a real file without asking anyone's permission.
macOS Apple Silicon and Windows 10/11