Hi Oscar
Thanks for the .xls - I have not been able to replicate this issue with a recreated survey.
In terms of the link you provided - can you confirm that the survey is still shared, as I can't download it (it says it is unavailable). Once shared I will test on a number of devices we have here.
Also can you confirm whether this was the first time the survey was downloaded by the user or was this a repeat download?
Thanks
John