How to give the correct excel file to php with security settings?

Question

PHP

Good afternoon, to return the unloading, I use the class like this.
The problem is that in 2007 everything opens correctly, but in the version above 2010 it only gives Protected View. How to fix it?

class ExportToExcel {
    var $xlsData = "";
    var $fileName = "";
    var $countRow = 0;
    var $countCol = 0;
    var $totalCol = 15;
    function __construct (){
        $this->xlsData = pack( "ssssss", 0x809, 0x08, 0x00,0x10, 0x0, 0x0 );
    }
    // ���� �����
    function RecNumber( $row, $col, $value ){
        $this->xlsData .= pack( "sssss", 0x0203, 14, $row, $col, 0x00 );
        $this->xlsData .= pack( "d", $value );
        return;
    }
    //���� �����
    function RecText( $row, $col, $value ){
        $len = strlen( $value );
        $this->xlsData .= pack( "s*", 0x0204, 8 + $len, $row, $col, 0x00, $len);
        $this->xlsData .= $value;
        return;
    }
    // ��������� �����
    function InsertNumber( $value ){
        if ( $this->countCol == $this->totalCol ) {
            $this->countCol = 0;
            $this->countRow++;
        }
        $this->RecNumber( $this->countRow, $this->countCol, $value );
        $this->countCol++;
        return;
    }
    // ��������� �����
    function InsertText( $value ){
        if ( $this->countCol == $this->totalCol ) {
            $this->countCol = 0;
            $this->countRow++;
        }
        $this->RecText( $this->countRow, $this->countCol, $value );
        $this->countCol++;
        return;
    }
    // ������� �� ����� ������
    function GoNewLine(){
        $this->countCol = 0;
        $this->countRow++;
        return;
    }
    //����� ������
    function EndData(){
        $this->xlsData .= pack( "ss", 0x0A, 0x00 );
        return;
    }
    // ��������� ����
    function SaveFile( $fileName ){
        $this->fileName = $fileName;
        $this->SendFile();
    }
    // ���������� ����
    function SendFile(){
        $this->EndData();
        header ( "Last-Modified: " . gmdate("D,d M YH:i:s") . " GMT" );
        header ( "Cache-Control: no-store, no-cache, must-revalidate" );
        header ( "Pragma: no-cache" );
        header ( "Content-type: application/x-msexcel" );
        header ( "Content-Disposition: attachment; fileName=$this->fileName.xls" );
        print $this->xlsData;
    }
}

Answer 1

In Protected View, it is usually written for what reason the file is opened in Protected View, what is written there? https://support.office.com/en-us/article/%D0%A7%D1...