When I finally found the controller profile files under the cryptic path
“c:\Users\USERNAME\AppData\Local\Packages\Microsoft.Limitless_8wekyb3d8bbwe\SystemAppData\wgs\00090000088D1313_000000000000000000000000604CC91B\several_subfolders”
I was thinking, there should be a way to display these files in a spreadsheet, manipulate and then write back to xml.