Error facing when trying to xls to xml online converting

When I am trying to convert my xls to xml then show following error but I can't find where to solve.

Error: There does not seem to be a allow_choice_duplicates column header defined in your settings sheet. You must have set allow_choice_duplicates setting in your settings sheet to have duplicate choice list names in your choices sheetSUFAL_Community_Consultation_2021_final.xlsx (86.5 KB)

Hi @Md_Saedur_Rahman
Here you can find solution
or in a few other topic on this forum if you google allow_choice_duplicates

Thank you. Solve this issue.