I seem to be having the same problem as Ruben did, having a questionnaire where the items are already in Spanish and having the language setting in Spanish as well. When downloading the data there is no option to select labels, only ´Español´ or ´XML´ values. I have tried changing the setting of the language but cannot delete Spanish as main language. Also deploying the questionnaire doesn´t work for me.
Could you maybe help downloading my data with the possibilities to select labels? It will make the understanding of the data a lot easier.