Jacob G. circling back on this one - the support team said
you may want to do a quick skim through to see if there are any questions phrased as Yes/No questions and add the addition Please describe if you anticipate needing to add an explanation, then upload the doc
But I uploaded a excel based questionnaire just a week ago and there are questions like the below where there are terms like "Please Specify" or "Describe the mechanism" and yet I still see the Yes/No option only and no Free text option. Is this expected ?