I did use ActiveX Control and tried opening an excel sheet, entering some values inside the excel sheet, even closing the excel sheet is possible but didnt find a way to create dynamic comboboxes.
Heres the code that i wrote in javascript
var Excel, Book;// Declare the variables
// Create the Excel application object.
Excel = new ActiveXObject("Excel.Application");
Excel.Workbooks.Open("C:/Final templates/MyExcel.xls");
Excel.Visible = true;// Make Excel invisible.
Book.ActiveSheet.Cells(1,1).Value = document.all.my_textarea1.value;
Book.SaveAs("C:\Final templates\MyExcel.xls");
Excel.Quit();// Close Excel with the Quit method on the
Thnx