Allowing duplication field in excel.csv file

How can i allow some entries to duplicate in excel.csv. In the excel.csv file that i download a koboltoolbox contains multi-sheet (for stand alone group and for repeated groups) but only one of them have the name of participant other don't. but i want my excel.csv to have a unique name of participant in each and every sheet.

Welcome to the ODK forum, @magendo! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

It is hard to troubleshoot with such a general description. Are you able to share the XLSForm for the survey?