Workbook Audit

Workbook Audit scans an Excel file for broken formulas, hidden sheets, external links, and other problems Excel won’t warn you about. Your file never leaves your device.

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100% private

Your files are processed locally and never uploaded to our servers.

What this Excel workbook audit tool checks

Five checks run against every upload. Broken formula references, text stored as numbers, external links to other workbooks, and volatile functions like NOW() or INDIRECT() all report the exact cell on the free tier. The kind of error that’s genuinely hard to spot by eye in a 400 row sheet. Hidden sheets, rows, and columns report a sheet name and count for free; Pro shows exactly which rows and columns.

Free vs. Pro

Free

  • Unlimited scans, any file up to 20MB
  • Exact cell addresses for broken formulas, external links, text-as-numbers, and volatile functions
  • Sheet name and count for hidden sheets, rows, and columns

Pro $9/month

  • Everything in Free, plus:
  • One click fixes such as unhide every hidden sheet, row, and column. Strip external links the way Excel’s own “Break Links” does; convert text back to real numbers, with a preview before anything writes
  • Exact row and column numbers behind every hidden sheet count
  • CSV export of what changed
  • Increased file size limit up to 50MB

Works with .xls, .xlsx, and .xlsm

Scanning reads any Excel format, including legacy .xls files. One click fixes need .xlsx or .xlsm. .xls is a binary format Excel itself has to convert before editing it safely, so a .xls upload gets a prompt to save as .xlsx and re upload instead of a fix that might not hold. Thirty seconds in Excel, no risk to your formatting.