How to sign off an Excel sheet
A signed spreadsheet is an odd object until you have needed one: a rate card, a bill of quantities, a payment schedule, a stock count somebody has to attest to. Excel has no good answer. A pasted signature image is a floating object anybody can delete, and a certificate-based signature invalidates the instant a cell changes, which for a living workbook is immediately. The version that works is to sign the sheet as it would print, so what is attested is the figures as they stood on the day.
Drop your document here and sign it now. PDF, Word and Excel all work: a .docx or .xlsx is laid out in your browser exactly as it was written, so there is nothing to convert first. Add a signature, a date, a company stamp or a watermark, then download it sealed. Free to start, no account, and the file is never uploaded to open it.
How to sign off an Excel sheet, step by step
- Drop the .xlsx in, Each sheet is paginated using the workbook's own page setup: paper size, orientation, margins, column widths, number formats and repeated print titles.
- Check the page breaks before you sign, This is where a printed spreadsheet usually goes wrong, and it is far easier to fix before the signature than after it.
- Sign the sheet that needs attesting, Place the signature and the date on the page carrying the figures. Add a company stamp beside it if the document expects one.
- Download it sealed, As a PDF, or back as an .xlsx whose sheets are the finished pages if the file has to stay a workbook.
What you get
- No Excel add-in, no certificate store and no digital ID to obtain.
- Column widths, currency formats, landscape sheets and print titles all survive.
- The signed copy cannot be edited, which is the point of signing off figures.
- A tamper-evident seal, so a changed number is detectable rather than arguable.
- The working .xlsx stays yours, with its formulas, alongside the signed record.
Frequently asked questions
How do I add an electronic signature to an Excel spreadsheet?
Drop the .xlsx in and it is laid out the way Excel would print it, then sign the page that needs signing and download it sealed. Nothing is installed and no certificate is needed.
How do I insert a digital signature line in Excel?
Insert, Text, Signature Line, the same menu as Word. It places a placeholder, and filling it in needs a digital ID. The signature it produces then invalidates on any edit to the workbook, which is correct behaviour and also why almost nobody uses it twice.
How do I lock an Excel sheet after signature?
Protecting a sheet in Excel stops casual editing and is undone with the password or, honestly, with any of the tools that remove it. Signing the laid-out sheet is stronger: the signed file is not a workbook any more, so there are no cells to edit, and the seal makes a modified copy detectable.
What happens to my formulas?
They are not in the signed copy, deliberately. What gets signed is the values as they stood, which is the point of attesting to a schedule. Keep the .xlsx for the working, and treat the signed file as the record.
Can two people sign the same sheet?
Yes. Send it for signature and each signer is recorded separately with their own time, so a preparer and an approver both appear on the audit certificate.
Can I get an .xlsx back rather than a PDF?
Yes. The download is offered in both, and the .xlsx version carries the finished pages so the layout is exactly what you approved.
What PDF Verified is, and what it is not
PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.