Writing to Closed Excel File

What's the best (quickest) way to write to a closed Excel file?

Right now, I'm opening the file and writing to it, but is there a faster way? I don't need to 'read' from the file for any reason.

sCopyName = ThisWorkbook.Path & "\Pricing Tool.xls"
            Set Wkb = Workbooks.Open(sCopyName, UpdateLinks:=0)
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manCodeCol) = codeTextbox.Value
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manNameCol) = manufacturerTextbox.Value
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manDescCol) = descriptionTextbox.Value
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manPriceCol) = priceTextbox.Value
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manInstallCol) = installTextbox.Value
            Workbooks("Pricing Tool").Sheets("Manufacturer Codes").Cells(finalProduct, manSearchCol) = searchTextbox.Value
            If Val(Application.Version) < 12 Then
                'You use Excel 97-2003
                Workbooks("Pricing Tool").SaveAs Filename:=sCopyName
            Else
                'You use Excel 2007
                Workbooks("Pricing Tool").SaveAs Filename:=sCopyName, FileFormat:=56
            End If
            Wkb.Close False