CheckBefore
Check a file

FREE XLSX SHARING CHECK

Check Excel Hidden Sheets Before Sharing

Find hidden and very hidden worksheets locally before you send, publish, or upload an Excel file.

Processed locally in your browserYour original stays unchanged. The file and filename are not uploaded for a standard scan.
SummaryBudget◌ Forecast
Hidden contentExample
  • Hidden worksheetForecast
  • StateVery hidden
  • ActionLeft for review

Supported cell-text patterns are checked locally; cells are not redacted.

Example only — hidden sheets are surfaced for your decision, not automatically deleted.

Private scan workspace

Check a file before it leaves your hands.

Start with 2 free checks — no account needed.Original stays unchanged.

Processed locally
⌁ Your original stays on this device◌ No account needed for a free check

Choose a file or drop it here

SUPPORTED COVERAGE

What can be detected

  • Hidden worksheets
  • Very hidden worksheets
  • Hidden rows and columns
  • Supported personal-information and secret patterns in visible and hidden worksheet text and formulas

ONE LOCAL WORKSPACE

How it works

  1. SelectChoose a supported file from this device.
  2. UnderstandReview the evidence and the stated scan limits.
  3. CleanCreate a separate copy with only supported items removed.
  4. RescanCheck the latest copy again and review anything left unchanged.

HONEST BOUNDARIES

What CheckBefore does not do

  • It can flag supported personal-information and secret patterns in worksheet text and formulas, but it does not redact, rewrite, or anonymize cell values.
  • It identifies hidden sheets and rows or columns, but leaves their contents for your review.
  • It cannot decide whether the workbook's visible content, formulas, or business meaning is safe to share.
Check Excel for Hidden Data and MetadataCheck an Excel workbook locally for hidden sheets, hidden rows and columns, comments, author properties, links, connections, and embedded content.Remove Excel CommentsFind comments and notes that may remain in an Excel workbook.Excel External Link CheckerCheck an XLSX locally for detectable external workbook links, linked file paths, defined-name references, and connection records before sharing it.Check an Excel File Before SendingScan an Excel file locally before you send it externally.

See all supported file checks on the CheckBefore homepage

Check Excel Hidden Sheets Before Sharing | CheckBefore