The safest way to share a spreadsheet: a brand-new workbook containing only the visible values you choose.
Loading tool…
Select a workbook. Sheets are listed with visibility status.
Choose which sheets to include (hidden sheets are excluded by default).
A brand-new workbook is built from displayed values only.
The output is reparsed to verify it contains no formulas, comments, links, or properties, then downloads.
The output package is reparsed and scanned: verification requires zero formulas, zero comments, zero hyperlinks, zero defined names, and empty document properties, plus matching sheet and row counts for what you selected.
Editing a workbook in place can leave remnants — shared strings that still hold deleted text, cached pivot data, revision metadata. A values-only rebuild starts from an empty file and copies in only visible cell values, so there is nowhere for hidden structures to survive.
No. The file is opened with your browser's File API and processed by code running in your tab. You can confirm this yourself: open your browser's developer tools, watch the Network panel, and process a file — no request carries your file's bytes. See our How it works page for a step-by-step verification guide.
The same local tool, preconfigured for a specific job.
Technical guidance, limitations, and safer workflows related to this tool.
A spreadsheet you're about to share can contain entire sheets you can't see, formulas pointing at internal data, and identity metadata. Where Excel hides data and how to audit a workbook before it leaves your hands.
9 min read · Reviewed August 2026
AI assistants are useful precisely because you give them your real documents — which is why the documents should be cleaned first. A practical pre-upload routine that runs entirely on your device.
7 min read · Reviewed July 2026
Inventory hidden and very-hidden sheets, hidden rows/columns, defined names, hyperlinks, and comments.
Inspect core and custom document properties, strip identity fields, and verify the clean export.
Convert each worksheet to CSV with delimiter choice and a ZIP for multi-sheet workbooks.