Sub returnDates()
    Dim QuotationStartD As Date, QuotationStartD As Date
    QuotationStartD = Cells(5, 3)
    QuotationEndD = Cells(6, 3)
    For Row = 1 To (QuotationEndD - QuotationStartD)
        MsgBox QuotationStartD + Row - 1   ' put your sheet and cells
    Next Row
End Sub