Microsoft Excel file save as xls vs xlsx in C#
Overview: xlsx is a newer format. Code Samples below: SaveAs xls wb.SaveAs(fullPath, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue); SaveAs xlsx wb.SaveAs(fullPath, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Missing.Value,…