#"Expanded Each List" = Table.TransformColumns(#"Grouped Rows", {"All", each List.Transform(_, each if List.Count(_)>1 then Text.From(List.Min(_))&"-"&Text.From(List.Max(_)) else Text.From(_{0}))}),
#"Extracted Values" = Table.TransformColumns(#"Expanded Each List", {"All", each Text.Combine(List.Transform(_, Text.From), ", "), type text})