Sub Copie()
Columns("AC:AD").Insert Shift:=xlToRight, CopyOrigin:=xlFormatFromLeftOrAbove
Columns("AB:AB").Copy
Columns("AC:AD").PasteSpecial Paste:=xlPasteFormats, Operation:=xlNone, _
SkipBlanks:=False, Transpose:=False
Range("AC1") = "Anti"
Range("AD1") = "PCcol"
End Sub