Sign Microsoft® Excel

Digitally Sign a Microsoft® Excel Document

NOTE that Digital Signature facility is available only for Microsoft Office Xp [2002] or higher. Sign a Document Using the Built-in Feature. And you can also use the Digi-Seal™ [1] system to sign documents too.

1. Open the document that you want to sign.
2. On the Tools menu, click Options to display the Options dialog box.
3. Click the Security tab.
4. Click Digital Signatures button.
5. In the Digital Signature dialog box, click Add. This displays the Select Certificate dialog box as shown in Figure 3.

NOTE If you haven't yet saved the document that you want to digitally sign, at this point you will be asked to save it. You won't be able to proceed with the signing until you've saved it.







Figure 3. Selecting a digital certificate for signing.

6. Click OK to close each of the dialog boxes.

Now the document is digitally signed. How would you know? If you look at the name of the document on the top left of the document window, you will find "(Signed)" next to the document name.

Multiple Digital Signatures

NOTE that you can also use more than one digital certificate to sign a document. If you want to do this, repeat step 5 the same number of times as the number of digital certificates used, before continuing to step 6.