A Choose Document to Insert dialog box will appear In the dialog box, select an Excel file and click Insert. An Insert File dialog box will appear.

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

Enter the name of the file you're looking for in the search box. If you don't know the name of the file or files you're looking for, but instead want to bring up all of your Word and Excel files ...