Gets or sets the password that must be supplied to open the workbook.
Assembly: Microsoft.Office.Tools.Excel (in Microsoft.Office.Tools.Excel.dll)
Use strong passwords that combine uppercase and lowercase letters, numbers, and symbols. Weak passwords do not mix these elements. Strong password: Y6dh!et5. Weak password: House27. Use a strong password that you can remember so that you do not have to write it down.