Function Workbook.SaveAs( _
Name As String, _
Optional Overwrite As Variant = 0) As Boolean
Name [in]
The fully-qualified pathway to where the workbook shall be saved.
Type: String
Overwrite [in, optional]
Whether or not to overwrite the file if it already exists. This parameter defaults to False.
Type: Variant
Default value: 0
Boolean
SVB Example
Backing up a workbook document
Option Base 1
Option Explicit
Sub Main
Dim wb As Workbook
Set wb = ActiveWorkbook
Dim FilePath As String
FilePath = wb.FullName
'save a backup copy of the workbook in the
'same directory
wb.SaveAs(FilePath & ".bak")
End Sub