Laravel 5.2 Maatwebsite Excel set cell to text to column

I have a code like this, this code print a date at A:A.

$file_name = 'Forecast Accuracy Standards_'.date('Y_m_d_').time();
Excel::create($file_name , function ($excel) use ($fasmodules, $data) {
    $excel->sheet('Sheet 1', function ($sheet) use ($fasmodules, $data) {
        $sheet->cells('A1', function($cells) {
            $cells->setValue('Date');
        });

        $sheet->cells('B1', function($cells) {
             $cells->setValue('FPE');
        });

        $ctr=2;
        foreach($fasmodules as $fas){
            $sheet->appendRow($ctr, array(
                date('m/d/Y',strtotime($fas->date)), $fas->fpe
            ));
            $ctr = $ctr + 1;
        }});
})->export('xls');

After printing it I wan't the date set to text to column cause, My formula like this not working.

$sheet->cells('E6', function($cells) {
    $jan_start = "01/01/2017";
    $jan_end = "01/30/2018";<=12/27/18")
    $cells->setValue('=SUMIFS(B1:B5807,A1:A5807,">=12/27/17",A1:A5807,"<=12/27/18")');
});

Also please some one answer this ticket: Laravel 5.4 Maatwebsite Excel set column format to number

via Chebli Mohamed