When you manual copy a worksheet or worksheets from a xlsm workbook (with code) with macro's disabled.

1) Right click on a sheet tab
2) Choose "Move or Copy"
3) Change the "To Book" to (new book)
4) Check the "Create a Copy" check box
5) OK

You will see this security dialog




Manual this is no big problem but what if you have code in your personal.xlsb or add-in
that copy a sheet or sheets to a new workbook.

The dialog only popup when you try to copy a sheet or sheets from a xlsm workbook (with code in it)
with macro's disabled.Because there is no way to check if macros are enabled or not we must always
use a workaround.

Here is a basic example to save the ActiveSheet in a new workbook with a date/time stamp in your Application.DefaultFilePath. This test macro exit the sub if your answer is NO in the security dialog

See the Tip below the macro about the SendKeys line.

Sub Copy_Sheet_Sheets_To_New_Workbook()
'Working in 97-2007
    Dim FileExtStr As String
    Dim FileFormatNum As Long
    Dim Sourcewb As Workbook
    Dim Destwb As Workbook
    Dim TempFilePath As String
    Dim TempFileName As String
 
    With Application
        .ScreenUpdating = False
        .EnableEvents = False
    End With
 
    Set Sourcewb = ActiveWorkbook
 
    'Copy sheet to a new workbook
    ActiveSheet.Copy
    Set Destwb = ActiveWorkbook
 
    'Determine the Excel version and file extension/format
    With Destwb
        If Val(Application.Version) < 12 Then
            'You use Excel 97-2003
            FileExtStr = ".xls": FileFormatNum = -4143
        Else
            'You use Excel 2007
            'We exit the sub when your answer is NO in the security dialog that you
            'see when you copy a sheet from a xlsm file with macro's disabled.
            If Sourcewb.Name = .Name Then
                With Application
                    .ScreenUpdating = True
                    .EnableEvents = True
                End With
                MsgBox "Your answer is NO in the security dialog"
                Exit Sub
            Else
                ' Note: if you are not sure if the sheet have VBA code then always
                ' save in xlsm or xlsb. it will delete the code if you save as xlsx
                FileExtStr = ".xlsm": FileFormatNum = 52
            End If
        End If
    End With
 
    '    'Change all cells in the worksheet to values if you want
    '    With Destwb.Sheets(1).UsedRange
    '        .Cells.Copy
    '        .Cells.PasteSpecial xlPasteValues
    '        .Cells(1).Select
    '    End With
    '    Application.CutCopyMode = False
 
 
    'Save the new workbook and close it
    TempFilePath = Application.DefaultFilePath & "/"
    TempFileName = "Part of " & Sourcewb.Name & " " & Format(Now, "dd-mmm-yy h-mm-ss")
 
    With Destwb
        .SaveAs TempFilePath & TempFileName & FileExtStr, FileFormat:=FileFormatNum
        .Close False
    End With
 
    MsgBox "You can find the file in " & TempFilePath & TempFileName & FileExtStr
 
    With Application
        .ScreenUpdating = True
        .EnableEvents = True
    End With
End Sub

Tip:
Remember that SendKeys is not always reliable but Above ActiveSheet.Copy
you can try to add this code line Application.SendKeys "y"
It will close the Security Notice dialog with "yes".


Save in a different format

You can save also in a different format if you want
In the 97-2003 and the 2007 part you can use also this to save as txt, prn, csv

FileExtStr = ".txt": FileFormatNum = -4158
FileExtStr = ".prn": FileFormatNum = 36
FileExtStr = ".csv": FileFormatNum = 6


In the 2007 part you can also use

FileExtStr = ".xlsx": FileFormatNum = 51
FileExtStr = ".xlsb": FileFormatNum = 50
FileExtStr = ".xls": FileFormatNum = 56

51 = xlOpenXMLWorkbook (without macro's in 2007, xlsx)
52 = xlOpenXMLWorkbookMacroEnabled (with or without macro's in 2007, xlsm)
50 = xlExcel12 (Excel Binary Workbook in 2007 with or without macro’s, xlsb)
56 = xlExcel8 (97-2003 format in Excel 2007, xls)