How to start MS Office Automation for my Web Application?
How to call Office Automation methods from JavaScript code?
What are the input and the output parameters type for the Office Automation methods?

View the follow samples:

function WordAutomation()
{
document.OA1.CreateNew( “Word.Document”);
var objWord = document.OA1.ActiveDocument;
objWord.Content.Text = “You can do the office Automation with the Edraw Office Viewer Component.”;
} 
 
more examples:

Use the follow Javascript to insert a file in the header of MS Word.
function WordAutomation()
{
document.OA1.CreateNew(”Word.Document”);
var objWord = document.OA1.ActiveDocument;
objWord.Sections(1).Headers(1).Range.InsertFile(”c:\\test.docx”);
}