How to foreach inside return in mapping of excel in laravel

want to foreach a data from db in return of mapping in excel downloading using laravel i got this model result using foreach return [ [ "11-11-2021" ], [ [ "anuu", "9874563210", "5", ],[ "ammu", "14785223969", "5", ],[ "raman", "8521479630", "2", ], ], ];