We work on extending the list of supported i18n formats. If you need an i18n format and can't find it here send us an email.
Depending on the format it comes with different support functionality helping you with correct syntax.
The chosen i18n format will always be respected. There is no sort of i18n format conversion while importing from or exporting to one of the supported file formats.
You can learn more about the different i18n formats here.