XlFileFormat for excel 2010 file

I want to create a excel 2010 file from C# so what will be the XlFileFormat Enumeration fo开发者_Go百科r it.

http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.xlfileformat.aspx

• xlOpenXMLWorkbook for a .xlsx macro free workbook.
• xlOpenXMLWorkbookMacroEnabled for a .xlsm macro enabled workbook.

The key piece of knowledge is that the new Office 2007 file formats are called Office Open XML.