Let me tell you the standard answer! Delete the digital signature of the file on the Tools menu, and then click Options. Click the Security tab. Click the digital signature. Select the signature you want to delete, and then click the Delete button. Then delete the digital signature of the macro, and open the file containing the macro project whose signature you want to delete. Click the Tools menu, point to the Macro submenu, and then click the VisualBasic Editor command. In the Project Browser, select the project whose signature you want to delete. Click Digital Signature on the Tools menu. Click the Delete button.

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