I’ve been collecting data for a week now. I’ve already been able to download the first submitted data without any problem. But to my great surprise, this evening I want to upload the database again, but an error message appears as in the image below. What do I do now? I have two collection projects with the same problem at the moment. I’ve tried exporting with the old XLS version but the content is unusable.
What can I do to download the data in the excel format normally used with labels?
Thanks for your help.