please put under " public function downloadExcel($type) " function

JobseekerController.php

 private function transformCollection($collection){

        return array_map([$this, 'transform'], $collection->toArray());
    }


  private function transform($collection){
        return [
            // 'Full Name' => $collection['jobseeker_id']. ' '. $collection['fullname']. ' '.         $collection['date'],
            // 'Phone No' => $collection['date'],
            // 'Full Address' => $collection['id']. ' '. $collection['fullname']
               'fullname'=>$collection['fullname'],
               'jobseeker_id'=> $collection['jobseeker_id'],
               'date'=>$collection['date'],
               'active_inactive'=>$collection['active_inactive'],
               'fb_name'=> $collection['fb_name'],
               'gender' => $collection['gender'],
               'age' => $collection['age'],
               'expected_salary' => $collection['expected_salary'],
               'expected_salary_other' => $collection['expected_salary_other'],
               'education' => $collection['education'],
               'nrc_no'=>$collection['nrc_no'],
               'township'=>$collection['township'],
               'wards' => $collection['wards'],
               'bus_stops' => $collection['bus_stops'],
               // 'bus_stops' => $collection['Otherbusstops'],
               'previous_function_1' => $collection['previous_position_1'],
               'certification_and_license' => $collection['certification_and_license'],
               'fabrics' => $collection['fabrics'],
               'experience_month_1' => $collection['experience_month_1'],
               'company_name_1' => $collection['company_name_1'],
               'previous_position_1' => $collection['previous_position_1'],
               'previous_position_2' => $collection['previous_function_2'],
               'previous_position_other' => $collection['previous_position_other'],
               'previous_position_other_2' => $collection['previous_position_other_2'],
               'previous_function_2' => $collection['previous_function_2'],
               'desire_function_1' => $collection['desire_function_1'],
               'desire_function_2' => $collection['desire_function_2'],
               'type_of_license' => $collection['type_of_license'],
               'experience_month_2' => $collection['experience_month_2'],
               'company_name_2' => $collection['company_name_2'],
               'desire_position_1' => $collection['desire_position_1'],
               'desire_position_other_1' => $collection['desire_position_other_1'],
               'desire_position_2' => $collection['desire_position_2'],
               'desire_position_other_2' => $collection['desire_position_other_2'],
              // 'job_industry_1' => $collection['Desired_Industry'],
              // 'job_industry_2' => $collection['other_industry'],
               'skill_1' => $collection['skill_1'],
               'skill_other_1' => $collection['skill_other_1'],
               'skill_2' => $collection['skill_2'],
               'skill_other_2' => $collection['skill_other_2'],
               'viber_number' => $collection['viber_number'],
               'phone'=>$collection['phone'],
               'chatfuel_user_id'=>$collection['chatfuel_user_id'],
              // 'last_user_freedom_input'=>$collection['last_user_freeform_input'],
               'messenger_user_id' =>$collection['messenger_user_id'],
//               'profile_pic_url' =>$collection['profile_pic_url'],
               'certificate' =>$collection['certificate'],
               'certificate_other' =>$collection['certificate_other']



        ];
    }