The default editor is the standard toolset available in WordPress. The Fusion Builder offers an intuitive drag and drop interface for creating and editing content. For more information on what it is and how it is used, please visit the Avada site.
You can copy and paste from the document and most if not all formatting will be carried over. More than likely this will require some fine tuning once pasted. This may involve fixing headings and removing extra spaces.
The second option is to paste as plain text. Doing this will provide you with clean content without any styling applied, you can then add it via the text editor in WordPress. To enable this option, click “Paste as Text” in the second row of the toolbar. If you do not see the second row, click “Toolbar Toggle” in the top row.