Export a Single Email Template
The easiest way to move templates from one account to another is to use the Export and Import at the bottom of the Email Template page.
You export all of the templates by simply clicking Export, or you can export one specific template by following these steps.
Start from the Individual Email Template and edit the URL
From the single template, add this information to the URL
&Export=1 to the URL
This will download an XML file that is ready to be imported. The file name starts with the NAME of the template then the date and time -- for easy finding and keeping track of versions.