You can add different types of translations to templates.
There're two options for adding translations for templates:
Create a separate RTF template that is translated (a localized template). This option is available for RTF templates only.
Generate an XLIFF from the original template. At runtime the original template is applied for the layout and the XLIFF is applied for the translation.
Use the first option if the translated template requires a different layout from the original template.
If you require only translation of the text strings of the template layout, then use the XLIFF option.
The diagrams in the following graphic illustrate the translation concepts.