Excel.Range selectedRange = (Excel.Range)objApp.Selection; selectedRange.Columns.AutoFit(); selectedRange.HorizontalAlignment = HorizontalAlignment.Center;In the above code, AutoFit works, but Horizontal Alignment doesn't.
Excel.Range TitleRange = (Excel.Range)xlWorkSheet.get_Range("A3", "M3"); TitleRange.Style.HorizontalAlignment = HorizontalAlignment.Center;I tried this..it doesn't work either