In the Publication Templates section, go to the Utilities drop down menu and select Import.
In the Publication Template Import Editor window, click the Browse button to select the Publication Template file to import.
Once the import file is selected, choose the Import File Type from the drop down menu. Click the Next button.
Give the imported Publication Template a name (required) and description (optional). Match up the import file fields to the required Style Map fields through the drop down menus.
Scroll down to the bottom of the list and select the Import button when finished and the new Publication Template will be available to edit.
Click the Save button to finish.
The new Publication Template can be selected from the Templates Listing.