How to export child array element to excel in Laravel - php

Question

I'm building an application in Laravel 5.5, with matwebsite/excel plugin where I'm having an array element to be exported into csv file. I'm able to get the values when I assign single string to key inside an array, but currently I have child array element which is present into the array, which is giving me blank excel sheet once included the same.
Without array elements:
public function investor(Request $request)
{
$record_set = [];
$tables = json_decode($request->investorTable);
foreach($tables as $table)
{
$record_set[] = array(
'schedule' => $table->schedule,
'Event type' => $table->event_type,
'Venue' => $table->venue,
'Nature' => $table->nature,
);
}
return Excel::create('investor', function($excel) use ($record_set) {
$excel->sheet('mySheet', function($sheet) use ($record_set) {
$sheet->fromArray($record_set);
});
})->download('csv');
}
this is working perfect but I want to place an array element whose name key I want to export, I don't know how to implement when I implement it it gives me blank sheet,
$record_set[] = array(
'schedule' => $table->schedule,
'Company Name' => $table->companyName,
'Contact Person' => $table->contact_participants,
'Event type' => $table->event_type,
'Venue' => $table->venue,
'Nature' => $table->nature,
);
my complete array element is something like this:
and the table looks into my html something like this:
I want exactly same output in excel, help me out with this.
Thanks.

Answer 1

You can use
Export to Excel5 (xls)
Excel::create('Filename', function($excel) {
})->export('xls');
// or
Export to Excel2007 (xlsx)
->download('xls');
Export to Excel2007 (xlsx)
->export('xlsx');
// or
->download('xlsx');
Export to CSV
Export to CSV
->export('csv');
// or
->download('csv');
Please refer that documentation
http://www.maatwebsite.nl/laravel-excel/docs/export