How do I read Excel embedded in a Word document using Interop with C#?

Question

I am trying to read an Excel sheet embedded in a Word document. What do I do after opening the Word document? These are the references I am using (Excel,Word)-- are there any others I need to use?

using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;

Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
Excel.Range range;

Word.Application wordApp;
Word.Document wordDoc;
Word.Range wordRange;

public TestCase Test()
{
   wordApp = new Word.Application();
   wordDoc = wordApp.Documents.Open(@"document");

   what next??
}

Answer 1

In order to interact with the embedded worksheet, it's necessary to Activate it.

Once it's activated, you can handle the Excel.Workbook, Excel.Application and Excel.Worksheet and Excel.Range objects:

    static void Main()
    {
        Excel.Application xlApp;
        Excel.Workbook xlWorkBook;
        Excel.Worksheet xlWorkSheet;
        Excel.Range xlRange;

        Word.Application wordApp = new Word.Application();
        wordApp.Visible = true;
        Word.Document wordDoc = wordApp.Documents.Open(@"c:\debug\word-excel.docm");

        // activate the object before you can interact with it
        wordDoc.InlineShapes[1].OLEFormat.Activate();

        xlWorkBook = wordDoc.InlineShapes[1].OLEFormat.Object;
        xlApp = xlWorkBook.Parent;
        xlWorkSheet = xlWorkBook.Worksheets[1];
        xlRange = xlWorkSheet.Range["A1:D10"];
    }