Hi @mrt_ky,
Welcome to the community! I just tried out uploading a csv file for select one from file question type and was successful. Please try using the attached file:
Reference xlsform:
select_one_from_file.xlsx (10.5 KB)
Reference csv file:
fruits.csv (522 Bytes)
For reference, you could also have a look at our previous post which should outline you with detailed steps on uploading a csv file in KoBoToolbox:
Have a great day!
