Validation.InputTitle Property
Returns or sets the title of the data-validation input dialog box. Read/write String.
Namespace: Microsoft.Office.Interop.Excel
Assembly: Microsoft.Office.Interop.Excel (in microsoft.office.interop.excel.dll)
Microsoft.Office.Interop.Excel Namespace
Assembly: Microsoft.Office.Interop.Excel (in microsoft.office.interop.excel.dll)
Reference
Validation InterfaceMicrosoft.Office.Interop.Excel Namespace