On the left side of the screen is where all your articles are saved.  You can simply select an article and it will appear inside the main content editor.

Each article in the table will show you the current word count and the date & time you created the article.

When you click on the tick box next to an article, more functionality is enabled.  You can delete the article or chose from three different formats to export your article.  If you want to export multiple articles, they will be included inside a .zip file.