To embed or add a Word document inside Excel requires the user to do so via Objects, Paste special, Linked documents, or creating a new file.

How to Insert an Attachment Into an Excel Spreadsheet. When you insert an object into an Excel file, such as a PDF file, Word document or an email message, you can access it more easily during a ...

Launch Microsoft Office Excel 2010 and open the spreadsheet that contains the data you want to insert into the Word document. Press "Ctrl-A" to select the entire spreadsheet.