Inspect formulas, errors, hidden sheets, blank headers, and risky workbook structure. Everything runs locally, with no account required.
XLSX
XLSX ≤ 30 MB compressed · expanded ≤ 150 MB · 100,000 rows × 1,000 columns
Inspect formulas, errors, hidden sheets, blank headers, and risky workbook structure.
Content is processed in your browser · Not sent to the application server · Free to use
The auditor walks workbook metadata, worksheets, formulas, cell errors, merged ranges, and header structure, then produces a categorized finding list.
The comparison is deterministic: the same files and settings produce the same classification. File contents remain inside the current browser session.
No. The file is opened read-only and all findings stay in the browser.
No. It detects structural signals; business logic still requires qualified review.
Runs in your browser
Content is processed in your browser and not sent to the application server
Works without an account