I am using your spreadsheet in the DOMA Challenge, and when I download, all the cells have #NAME? error. I am not an expert at Excel, and wondering if you know a fix?
Hmm, I made that spreadsheet in google sheets, so it might be a problem with opening it in excel. I don't have excel, so I'm not able to test that. Try clicking file>make a copy on the google sheets version and then using that copy in the google sheets interface.