Mainly in the following library operations of Excel:
MyXls ( http://sourceforge.net/projects/myxls/ )
Koogra ( http://sourceforge.net/projects/koogra/ )
ExcelLibrary ( http://code.google.com/p/excellibrary/ )
ExcelPackage ( HTTP : //excelpackage.codeplex.com/ )
EPPlus ( http://epplus.codeplex.com/ )
LinqToExcel ( http://code.google.com/p/linqtoexcel/ )
NetOffice ( HTTP: //netoffice.codeplex. COM / ) to be installed Office Excel
from 1-6 library not need to install Office, Office COM component is not used; the need NetOffice install Office, Setup provides Office COM component is similar function.