Here’s a solution that worked for me: an iframe!
Just go into text mode on a page of your site and type:
<iframe src=”https://www.yoursite.com/folder/file.html” width=”800″ height=”400″></iframe>
Change the height and width to suit.
When exporting your Edge file just choose the Web settings and create a folder inside your WordPress site. Then click publish and upload your whole folder to your site using an FTP program like Dreamweaver or Transmit (free). Inside your new folder you’ll find a file name ending in .html. That’s the html file you actually see when viewing your Edge presentation. Dial up your site in a browser and add the folder and filename to the address. You should be able to see your presentation online. Copy that address from your browser’s location bar and swap it into the ‘yoursite’ address I mentioned above.
It sounds very complex here but was easy to implement.