api - How do I delete a signature from an Excel document using Office automation -

I have a signed Excel workbook and I want to delete the signature from it. The problem is that when I try to delete the signature then there is an indication for confirmation of extinction and I want to automate the process completely. This is a code sample, when the last line is executed, the prompt appears:

  string = "c: \ temp \ sign.xlsx" ) As App.Vision = True Dim Book Workbook = App. Workbook Open (source, updated links: = 0) app. Shotolips = Phal Dim Sig as Microsoft Office Microsoft Office. Coir Sign = book Sigance ITEM (1) SIG Delete ()  

thanks

Aspose.Cells 5.2.0.0 You can add and delete Excel 2007 digital signature by using