Sets or returns the password hash that is used to protect the workbook.

public int ProtectPasswordHash{ get; set; }
Public Property ProtectPasswordHash() As Integer
          //--- Get the ProtectPasswordHash value for the workbook
          int passwordHash = wb.ProtectPasswordHash;

          //--- Set the ProtectPasswordHash value for the workbook
          wb.ProtectPasswordHash = 12345
        
          '--- Get the ProtectPasswordHash value for the workbook
          Dim passwordHash As Integer = wb.ProtectPasswordHash

          '--- Set the ProtectPasswordHash value for the workbook
          wb.ProtectPasswordHash = 12345