Youll notice that this window is in Code view, and cannot be switched to Design view (the view youve been working in until now) because the file is not an HTML file.
The text from the text file appears in the selected table cell.
Depending on your monitor resolution, the three-columned table widens to accommodate the text. Dont worry about how this looks right now. In the next tutorial, youll learn how to use CSS to format the text so that everything fits in the table appropriately.