SetOpenPassword(String) Method

'Declaration
 
Public Overloads Sub SetOpenPassword( _
   ByVal password As System.String _
) 

public void SetOpenPassword( 
   System.string password
)

Parameters

password

The password to use to encrypt the document; null or the empty string will prevent the document from being encrypted on subsequent saves.

Target Platforms: Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Workbook Class
Workbook Members
Overload List
IsWorkbookEncrypted(String) Method
IsWorkbookEncrypted(Stream) Method
HasOpenPassword Property
SetOpenPassword(SecureString) Method
OpenPassword Property