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Your LimeSurvey version: 6.15.3
Own server or LimeSurvey hosting: self-hosted
Survey theme/template: 'extended' version of TwentyThree
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I'd like to do something similar as the person here: forums.limesurvey.org/forum/can-i-do-thi...-german,-french,-etc

One difference: I want to send the survey to volunteers for translations using our translations tool (Weblate), and then import the translations into LimeSurvey again. This is to avoid our translators having to create (yet another) account to help us with this.

I see that it's possible to export txt and queXML files. Maybe even lss file format could work. I'm sure we could make something work with Weblate in those formats.

However: Say we have the translated files back; how would we import them into LimeSurvey so that it takes all translations (without changing conditions and other settings that might have been altered in the process)?

Hi,
I do not see any difference to the thread you mentioned.
Both of you want to translate automatically.
Obviously it is irrelevant how you get the translations.

• export to *.txt
• open in Excel, OpenOffice, etc.
• translate
• copy to the respective rows
• empty the first two columns of the file
• import

Anyway,
If you had thought about this before you created the survey in the base language you could have used the quick add feature to enter all translations at the same time.
In this example I used the automatic translation of Google Sheets
and joined the translations into one cell.
 
Then I entered in the quick add window.
 
And all translations are there
   
 


Joffm

And you see the lack of automatic translation.
In the first row the translator sees the english word "bars" as the sports equipment "bars", like "parallel bars"
and in rows 9/10 the problem of different school systems.