As well as being able to import data, codeit allows you to import translations that you have previously exported from codeit and sent to an external party for translation.
These files therefore import without difficulty, as all the correct parameters are in place in the file already. You can watch the video guide on multi-lingual projects which includes all the steps throughout codeit that can be adjusted to suit your language project. You can also find written guidance on the import wizard steps and options available.