To download HTML versions of your mailing follow these steps:  
• Navigate to the mailing you want and select 'Export' from the 'Actions' drop down menu  
• Click on the 'Download HTML' icon under the file exports section  
• Select  the versions you want to download  
• Select whether you want hosted images or image files  
• Click 'Start export'  
• Once the export has finished, click on the 'Download' link  
• Your HTML documents will download onto your computer in a .zip file