Helix Ultimate is only produced the English language file (en-GB.tpl_shaper_helixultimate.ini), other languages thank to Joomla community.
Like other templates, Helix include include .ini file which contains all of the English terms.
You should translate only this file: language\en-GB\en-GB.tpl_shaper_helixultimate.ini
The first thing you need to do is to translate all or selected strings (used on front-end) to your language and save them as with native language prefix.
Note: Each translated string must be enclosed by double quotes, always.
Then you change the filename from: en-GB.tpl_shaper_helixultimate.ini
File (.ini) must be saved as UTF-8 without BOM encoding.
When the phrases inside file have been translated, let’s copy your language file into your language directory using an FTP client.
That’s all! If you have any question about this tutorial, don’t hesitate to leave a comment below. And don’t forget to share with your friends if you find it useful! Thanks!