Microsoft Office Tutorials and References
In Depth Information
Authenticating workbooks
2
In the Your certificate’s name box, enter Excel2013SBS , and then click OK .
When you do, a message box indicates that the program created your certificate
successfully.
3
Click OK to close the message box.
4
Display the Backstage view, and then, if necessary, click Info . Click Protect
Workbook , and then click Add a Digital Signature to open the Sign dialog box.
5 In the Purpose for signing this document box, enter Testing .
6 Verify that the name of your certificate appears in the Signing as area of the dialog
box, and then click Sign . When you do, a dialog box opens, indicating that using a
selfcert.exe certificate prevents users from validating the signature.
7
Click OK to acknowledge the message and display the Signature Confirmation
dialog box.
8
Click OK . The Signatures pane opens and the workbook is marked as final. If you
edit the workbook, it will invalidate the digital signature, which is based on the
workbook’s contents at the time you signed it.
CLEAN UP Close the ProjectionsSigned workbook, saving your changes if you
want to.
14
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