diff --git a/simpleXMLElement.php b/spreadSheetReader/SimpleXLSX.php
similarity index 99%
rename from simpleXMLElement.php
rename to spreadSheetReader/SimpleXLSX.php
index cc839ec..df426d4 100644
--- a/simpleXMLElement.php
+++ b/spreadSheetReader/SimpleXLSX.php
@@ -1,7 +1,5 @@
 <?php
 
-use SimpleXMLElement;
-
 /**
  *    SimpleXLSX php class
  *    MS Excel 2007+ workbooks reader
@@ -1220,6 +1218,3 @@ class SimpleXLSX
         $this->datetimeFormat = is_string($value) ? $value : false;
     }
 }
-
-
-?>
\ No newline at end of file
diff --git a/spreadSheetReader/SimpleXLSXGen.php b/spreadSheetReader/SimpleXLSXGen.php
new file mode 100644
index 0000000..110fd6f
--- /dev/null
+++ b/spreadSheetReader/SimpleXLSXGen.php
@@ -0,0 +1,1015 @@
+<?php /** @noinspection ReturnTypeCanBeDeclaredInspection */
+/** @noinspection PhpMissingReturnTypeInspection */
+/** @noinspection NullCoalescingOperatorCanBeUsedInspection */
+
+/** @noinspection PhpIssetCanBeReplacedWithCoalesceInspection */
+
+
+
+/**
+ * Class SimpleXLSXGen
+ * Export data to MS Excel. PHP XLSX generator
+ * Author: sergey.shuchkin@gmail.com
+ */
+class SimpleXLSXGen
+{
+
+    public $curSheet;
+    protected $defaultFont;
+    protected $defaultFontSize;
+    protected $sheets;
+    protected $template;
+    protected $NF; // numFmts
+    protected $NF_KEYS;
+    protected $XF; // cellXfs
+    protected $XF_KEYS;
+    protected $BR_STYLE;
+    protected $SI; // shared strings
+    protected $SI_KEYS;
+    protected $extLinkId;
+    const N_NORMAL = 0; // General
+    const N_INT = 1; // 0
+    const N_DEC = 2; // 0.00
+    const N_PERCENT_INT = 9; // 0%
+    const N_PRECENT_DEC = 10; // 0.00%
+    const N_DATE = 14; // mm-dd-yy
+    const N_TIME = 20; // h:mm
+    const N_RUB = 164;
+    const N_DOLLAR = 165;
+    const N_EURO = 166;
+    const N_DATETIME = 22; // m/d/yy h:mm
+    const F_NORMAL = 0;
+    const F_HYPERLINK = 1;
+    const F_BOLD = 2;
+    const F_ITALIC = 4;
+    const F_UNDERLINE = 8;
+    const F_STRIKE = 16;
+    const F_COLOR = 32;
+    const FL_NONE = 0; // none
+    const FL_SOLID = 1; // solid
+    const FL_MEDIUM_GRAY = 2; // mediumGray
+    const FL_DARK_GRAY = 4; // darkGray
+    const FL_LIGHT_GRAY = 8; // lightGray
+    const FL_GRAY_125 = 16; // gray125
+    const FL_COLOR = 32;
+    const A_DEFAULT = 0;
+    const A_LEFT = 1;
+    const A_RIGHT = 2;
+    const A_CENTER = 4;
+    const A_TOP = 8;
+    const A_MIDDLE = 16;
+    const A_BOTTOM = 32;
+    const A_WRAPTEXT = 64;
+    const B_NONE = 0;
+    const B_THIN = 1;
+    const B_MEDIUM = 2;
+    //const
+    const B_DASHED = 3;
+    const B_DOTTED = 4;
+    const B_THICK = 5;
+    const B_DOUBLE = 6;
+    const B_HAIR = 7;
+    const B_MEDIUM_DASHED = 8;
+    const B_DASH_DOT = 9;
+    const B_MEDIUM_DASH_DOT = 10;
+    const B_DASH_DOT_DOT = 11;
+    const B_MEDIUM_DASH_DOT_DOT = 12;
+    const B_SLANT_DASH_DOT = 13;
+
+    public function __construct()
+    {
+        $this->curSheet = -1;
+        $this->defaultFont = 'Calibri';
+        $this->sheets = [['name' => 'Sheet1', 'rows' => [], 'hyperlinks' => [], 'mergecells' => [], 'colwidth' => [], 'autofilter' => '']];
+        $this->extLinkId = 0;
+        $this->SI = [];        // sharedStrings index
+        $this->SI_KEYS = []; //  & keys
+
+        // https://c-rex.net/projects/samples/ooxml/e1/Part4/OOXML_P4_DOCX_numFmts_topic_ID0E6KK6.html
+        $this->NF = [
+            self::N_RUB => '#,##0.00\ "₽"',
+            self::N_DOLLAR => '[$$-1]#,##0.00',
+            self::N_EURO => '#,##0.00\ [$€-1]'
+        ];
+        $this->NF_KEYS = array_flip($this->NF);
+
+        $this->BR_STYLE = [
+            self::B_NONE => 'none',
+            self::B_THIN => 'thin',
+            self::B_MEDIUM => 'medium',
+            self::B_DASHED => 'dashed',
+            self::B_DOTTED => 'dotted',
+            self::B_THICK => 'thick',
+            self::B_DOUBLE => 'double',
+            self::B_HAIR => 'hair',
+            self::B_MEDIUM_DASHED => 'mediumDashed',
+            self::B_DASH_DOT => 'dashDot',
+            self::B_MEDIUM_DASH_DOT => 'mediumDashDot',
+            self::B_DASH_DOT_DOT => 'dashDotDot',
+            self::B_MEDIUM_DASH_DOT_DOT => 'mediumDashDotDot',
+            self::B_SLANT_DASH_DOT => 'slantDashDot'
+        ];
+
+
+        $this->XF = [  // styles 0 - num fmt, 1 - align, 2 - font, 3 - fill, 4 - font color, 5 - bgcolor, 6 - border
+            [self::N_NORMAL, self::A_DEFAULT, self::F_NORMAL, self::FL_NONE, 0, 0, ''],
+            [self::N_NORMAL, self::A_DEFAULT, self::F_NORMAL, self::FL_GRAY_125, 0, 0, ''], // hack
+        ];
+        $this->XF_KEYS[implode('-', $this->XF[0])] = 0; // & keys
+        $this->XF_KEYS[implode('-', $this->XF[1])] = 1;
+
+
+        $this->template = [
+            '_rels/.rels' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="xl/workbook.xml"/>
+<Relationship Id="rId2" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml"/>
+<Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="docProps/app.xml"/>
+</Relationships>',
+            'docProps/app.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties">
+<TotalTime>0</TotalTime>
+<Application>' . __CLASS__ . '</Application></Properties>',
+            'docProps/core.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<cp:coreProperties xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<dcterms:created xsi:type="dcterms:W3CDTF">{DATE}</dcterms:created>
+<dc:language>en-US</dc:language>
+<dcterms:modified xsi:type="dcterms:W3CDTF">{DATE}</dcterms:modified>
+<cp:revision>1</cp:revision>
+</cp:coreProperties>',
+            'xl/_rels/workbook.xml.rels' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml"/>
+{SHEETS}',
+            'xl/worksheets/sheet1.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main"
+    xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"
+><dimension ref="{REF}"/>{COLS}<sheetData>{ROWS}</sheetData>{AUTOFILTER}{MERGECELLS}{HYPERLINKS}</worksheet>',
+            'xl/worksheets/_rels/sheet1.xml.rels' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">{HYPERLINKS}</Relationships>',
+            'xl/sharedStrings.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<sst xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" count="{CNT}" uniqueCount="{CNT}">{STRINGS}</sst>',
+            'xl/styles.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<styleSheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
+{NUMFMTS}
+{FONTS}
+{FILLS}
+{BORDERS}
+<cellStyleXfs count="1"><xf numFmtId="0" fontId="0" fillId="0" borderId="0" /></cellStyleXfs>
+{XF}
+<cellStyles count="1">
+    <cellStyle name="Normal" xfId="0" builtinId="0"/>
+</cellStyles>
+</styleSheet>',
+            'xl/workbook.xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
+<fileVersion appName="' . __CLASS__ . '"/><sheets>
+{SHEETS}
+</sheets></workbook>',
+            '[Content_Types].xml' => '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
+<Override PartName="/rels/.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>
+<Override PartName="/docProps/app.xml" ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml"/>
+<Override PartName="/docProps/core.xml" ContentType="application/vnd.openxmlformats-package.core-properties+xml"/>
+<Override PartName="/xl/_rels/workbook.xml.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>
+<Override PartName="/xl/sharedStrings.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml"/>
+<Override PartName="/xl/styles.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml"/>
+<Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"/>
+{TYPES}
+</Types>',
+        ];
+
+        // <col min="1" max="1" width="22.1796875" bestFit="1" customWidth="1"/>
+        // <row r="1" spans="1:2" x14ac:dyDescent="0.35"><c r="A1" t="s"><v>0</v></c><c r="B1"><v>100</v></c></row><row r="2" spans="1:2" x14ac:dyDescent="0.35"><c r="A2" t="s"><v>1</v></c><c r="B2"><v>200</v></c></row>
+        // <si><t>Простой шаблон</t></si><si><t>Будем делать генератор</t></si>
+    }
+
+    public static function fromArray(array $rows, $sheetName = null)
+    {
+        return (new static())->addSheet($rows, $sheetName);
+    }
+
+    public function addSheet(array $rows, $name = null)
+    {
+
+        $this->curSheet++;
+        if ($name === null) { // autogenerated sheet names
+            $name = 'Sheet' . ($this->curSheet + 1);
+        } else {
+            $name = mb_substr($name, 0, 31);
+            $names = [];
+            foreach ($this->sheets as $sh) {
+                $names[mb_strtoupper($sh['name'])] = 1;
+            }
+            for ($i = 0; $i < 100; $i++) {
+                $postfix = ' (' . $i . ')';
+                $new_name = ($i === 0) ? $name : $name . $postfix;
+                if (mb_strlen($new_name) > 31) {
+                    $new_name = mb_substr($name, 0, 31 - mb_strlen($postfix)) . $postfix;
+                }
+                $NEW_NAME = mb_strtoupper($new_name);
+                if (!isset($names[$NEW_NAME])) {
+                    $name = $new_name;
+                    break;
+                }
+            }
+        }
+
+        $this->sheets[$this->curSheet] = ['name' => $name, 'hyperlinks' => [], 'mergecells' => [], 'colwidth' => [], 'autofilter' => ''];
+
+        if (isset($rows[0]) && is_array($rows[0])) {
+            $this->sheets[$this->curSheet]['rows'] = $rows;
+        } else {
+            $this->sheets[$this->curSheet]['rows'] = [];
+        }
+        return $this;
+    }
+
+    public function __toString()
+    {
+        $fh = fopen('php://memory', 'wb');
+        if (!$fh) {
+            return '';
+        }
+
+        if (!$this->_write($fh)) {
+            fclose($fh);
+            return '';
+        }
+        $size = ftell($fh);
+        fseek($fh, 0);
+
+        return (string)fread($fh, $size);
+    }
+
+    public function saveAs($filename)
+    {
+        $fh = fopen($filename, 'wb');
+        if (!$fh) {
+            return false;
+        }
+        if (!$this->_write($fh)) {
+            fclose($fh);
+            return false;
+        }
+        fclose($fh);
+
+        return true;
+    }
+
+    public function download()
+    {
+        return $this->downloadAs(gmdate('YmdHi') . '.xlsx');
+    }
+
+    public function downloadAs($filename)
+    {
+        $fh = fopen('php://memory', 'wb');
+        if (!$fh) {
+            return false;
+        }
+
+        if (!$this->_write($fh)) {
+            fclose($fh);
+            return false;
+        }
+
+        $size = ftell($fh);
+
+        header('Content-type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
+        header('Content-Disposition: attachment; filename="' . $filename . '"');
+        header('Last-Modified: ' . gmdate('D, d M Y H:i:s \G\M\T', time()));
+        header('Content-Length: ' . $size);
+
+        while (ob_get_level()) {
+            ob_end_clean();
+        }
+        fseek($fh, 0);
+        fpassthru($fh);
+
+        fclose($fh);
+        return true;
+    }
+
+    protected function _write($fh)
+    {
+
+
+        $dirSignatureE = "\x50\x4b\x05\x06"; // end of central dir signature
+        $zipComments = 'Generated by ' . __CLASS__ . ' PHP class, thanks sergey.shuchkin@gmail.com';
+
+        if (!$fh) {
+            return false;
+        }
+
+        $cdrec = '';    // central directory content
+        $entries = 0;    // number of zipped files
+        $cnt_sheets = count($this->sheets);
+
+        foreach ($this->template as $cfilename => $template) {
+            if ($cfilename === 'xl/_rels/workbook.xml.rels') {
+                $s = '';
+                for ($i = 0; $i < $cnt_sheets; $i++) {
+                    $s .= '<Relationship Id="rId' . ($i + 2) . '" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet"' .
+                        ' Target="worksheets/sheet' . ($i + 1) . ".xml\"/>\n";
+                }
+                $s .= '<Relationship Id="rId' . ($i + 2) . '" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings" Target="sharedStrings.xml"/></Relationships>';
+                $template = str_replace('{SHEETS}', $s, $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } elseif ($cfilename === 'xl/workbook.xml') {
+                $s = '';
+                foreach ($this->sheets as $k => $v) {
+                    $s .= '<sheet name="' . $this->esc($v['name']) . '" sheetId="' . ($k + 1) . '" state="visible" r:id="rId' . ($k + 2) . '"/>';
+                }
+                $template = str_replace('{SHEETS}', $s, $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } elseif ($cfilename === 'docProps/core.xml') {
+                $template = str_replace('{DATE}', gmdate('Y-m-d\TH:i:s\Z'), $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } elseif ($cfilename === 'xl/sharedStrings.xml') {
+                if (!count($this->SI)) {
+                    $this->SI[] = 'No Data';
+                }
+                $si_cnt = count($this->SI);
+                $si = '<si><t>' . implode("</t></si>\r\n<si><t>", $this->SI) . '</t></si>';
+                $template = str_replace(['{CNT}', '{STRINGS}'], [$si_cnt, $si], $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } elseif ($cfilename === 'xl/worksheets/sheet1.xml') {
+                foreach ($this->sheets as $k => $v) {
+                    $filename = 'xl/worksheets/sheet' . ($k + 1) . '.xml';
+                    $xml = $this->_sheetToXML($k, $template);
+                    $this->_writeEntry($fh, $cdrec, $filename, $xml);
+                    $entries++;
+                }
+                $xml = null;
+            } elseif ($cfilename === 'xl/worksheets/_rels/sheet1.xml.rels') {
+                foreach ($this->sheets as $k => $v) {
+                    if ($this->extLinkId) {
+                        $RH = [];
+                        $filename = 'xl/worksheets/_rels/sheet' . ($k + 1) . '.xml.rels';
+                        foreach ($v['hyperlinks'] as $h) {
+                            if ($h['ID']) {
+                                $RH[] = '<Relationship Id="' . $h['ID'] . '" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink" Target="' . $this->esc($h['H']) . '" TargetMode="External"/>';
+                            }
+                        }
+                        $xml = str_replace('{HYPERLINKS}', implode("\r\n", $RH), $template);
+                        $this->_writeEntry($fh, $cdrec, $filename, $xml);
+                        $entries++;
+                    }
+                }
+                $xml = null;
+
+            } elseif ($cfilename === '[Content_Types].xml') {
+                $TYPES = ['<Override PartName="/_rels/.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>'];
+                foreach ($this->sheets as $k => $v) {
+                    $TYPES[] = '<Override PartName="/xl/worksheets/sheet' . ($k + 1) .
+                        '.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml"/>';
+                    if ($this->extLinkId) {
+                        $TYPES[] = '<Override PartName="/xl/worksheets/_rels/sheet' . ($k + 1) . '.xml.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>';
+                    }
+                }
+                $template = str_replace('{TYPES}', implode("\r\n", $TYPES), $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } elseif ($cfilename === 'xl/styles.xml') {
+                $NF = $XF = $FONTS = $F_KEYS = $FILLS = $FL_KEYS = [];
+                $BR = ['<border><left/><right/><top/><bottom/><diagonal/></border>'];
+                $BR_KEYS = [0 => 0];
+
+                foreach ($this->NF as $k => $v) {
+                    $NF[] = '<numFmt numFmtId="' . $k . '" formatCode="' . htmlspecialchars($v, ENT_QUOTES) . '"/>';
+                }
+
+                foreach ($this->XF as $xf) {
+                    // 0 - num fmt, 1 - align, 2 - font, 3 - fill, 4 - font color, 5 - bgcolor, 6 - border
+                    // fonts
+                    $F_KEY = $xf[2] . '-' . $xf[4];
+                    if (isset($F_KEYS[$F_KEY])) {
+                        $F_ID = $F_KEYS[$F_KEY];
+                    } else {
+                        $F_ID = $F_KEYS[$F_KEY] = count($FONTS);
+
+                        $FONTS[] = '<font><name val="' . $this->defaultFont . '"/><family val="2"/>'
+                            . ($this->defaultFontSize ? '<sz val="' . $this->defaultFontSize . '"/>' : '')
+                            . ($xf[2] & self::F_BOLD ? '<b/>' : '')
+                            . ($xf[2] & self::F_ITALIC ? '<i/>' : '')
+                            . ($xf[2] & self::F_UNDERLINE ? '<u/>' : '')
+                            . ($xf[2] & self::F_STRIKE ? '<strike/>' : '')
+                            . ($xf[2] & self::F_HYPERLINK ? '<u/>' : '')
+                            . ($xf[2] & self::F_COLOR ? '<color rgb="' . $xf[4] . '"/>' : '')
+                            . '</font>';
+                    }
+                    // fills
+                    $FL_KEY = $xf[3] . '-' . $xf[5];
+                    if (isset($FL_KEYS[$FL_KEY])) {
+                        $FL_ID = $FL_KEYS[$FL_KEY];
+                    } else {
+                        $FL_ID = $FL_KEYS[$FL_KEY] = count($FILLS);
+                        $FILLS[] = '<fill><patternFill patternType="'
+                            . ($xf[3] === 0 ? 'none' : '')
+                            . ($xf[3] & self::FL_SOLID ? 'solid' : '')
+                            . ($xf[3] & self::FL_MEDIUM_GRAY ? 'mediumGray' : '')
+                            . ($xf[3] & self::FL_DARK_GRAY ? 'darkGray' : '')
+                            . ($xf[3] & self::FL_LIGHT_GRAY ? 'lightGray' : '')
+                            . ($xf[3] & self::FL_GRAY_125 ? 'gray125' : '')
+                            . '"'
+                            . ($xf[3] & self::FL_COLOR ? '><fgColor rgb="' . $xf[5] . '"/><bgColor indexed="64"/></patternFill>' : ' />')
+                            . '</fill>';
+                    }
+                    $align = ($xf[1] & self::A_LEFT ? ' horizontal="left"' : '')
+                        . ($xf[1] & self::A_RIGHT ? ' horizontal="right"' : '')
+                        . ($xf[1] & self::A_CENTER ? ' horizontal="center"' : '')
+                        . ($xf[1] & self::A_TOP ? ' vertical="top"' : '')
+                        . ($xf[1] & self::A_MIDDLE ? ' vertical="center"' : '')
+                        . ($xf[1] & self::A_BOTTOM ? ' vertical="bottom"' : '')
+                        . ($xf[1] & self::A_WRAPTEXT ? ' wrapText="1"' : '');
+
+                    // border
+                    $BR_ID = 0;
+                    if ($xf[6] !== '') {
+                        $b = $xf[6];
+                        if (isset($BR_KEYS[$b])) {
+                            $BR_ID = $BR_KEYS[$b];
+                        } else {
+                            $BR_ID = count($BR_KEYS);
+                            $BR_KEYS[$b] = $BR_ID;
+                            $border = '<border>';
+                            $ba = explode(' ', $b);
+                            if (!isset($ba[1])) {
+                                $ba[] = $ba[0];
+                                $ba[] = $ba[0];
+                                $ba[] = $ba[0];
+                            }
+                            if (!isset($ba[4])) { // diagonal
+                                $ba[] = 'none';
+                            }
+                            $sides = [ 'left' => 3, 'right' => 1, 'top' => 0, 'bottom' => 2, 'diagonal' => 4];
+                            foreach ($sides as $side => $idx) {
+                                $s = 'thin';
+                                $c = '';
+
+                                $va = explode('#', $ba[$idx]);
+                                if (isset($va[1])) {
+                                    $s = $va[0] === '' ? 'thin' : $va[0];
+                                    $c = $va[1];
+                                } elseif (in_array($va[0], $this->BR_STYLE, true)) {
+                                    $s = $va[0];
+                                } else {
+                                    $c = $va[0];
+                                }
+                                if (strlen($c) === 6) {
+                                    $c = 'FF' . $c;
+                                }
+
+                                if ($s && $s !== 'none') {
+                                    $border .= '<' . $side . ' style="' . $s . '">'
+                                        . '<color ' . ($c === '' ? 'auto="1"' : 'rgb="' . $c . '"') . '/>'
+                                        . '</' . $side . '>';
+                                } else {
+                                    $border .= '<' . $side . '/>';
+                                }
+
+                            }
+                            $border .= '</border>';
+                            $BR[] = $border;
+                        }
+                    }
+
+
+                    $XF[] = '<xf numFmtId="' . $xf[0] . '" fontId="' . $F_ID . '" fillId="' . $FL_ID . '" borderId="' . $BR_ID . '" xfId="0"'
+                        . ($xf[0] > 0 ? ' applyNumberFormat="1"' : '')
+                        . ($F_ID > 0 ? ' applyFont="1"' : '')
+                        . ($FL_ID > 0 ? ' applyFill="1"' : '')
+                        . ($BR_ID > 0 ? ' applyBorder="1"' : '')
+                        . ($align ? ' applyAlignment="1"><alignment' . $align . '/></xf>' : '/>');
+
+                }
+
+
+                // wrap collections
+                array_unshift($NF, '<numFmts count="' . count($NF) . '">');
+                $NF[] = '</numFmts>';
+                array_unshift($XF, '<cellXfs count="' . count($XF) . '">');
+                $XF[] = '</cellXfs>';
+                array_unshift($FONTS, '<fonts count="' . count($FONTS) . '">');
+                $FONTS[] = '</fonts>';
+                array_unshift($FILLS, '<fills count="' . count($FILLS) . '">');
+                $FILLS[] = '</fills>';
+                array_unshift($BR, '<borders count="' . count($BR) . '">');
+                $BR[] = '</borders>';
+
+                $template = str_replace(
+                    ['{NUMFMTS}', '{FONTS}', '{XF}', '{FILLS}', '{BORDERS}'],
+                    [implode("\r\n", $NF), implode("\r\n", $FONTS), implode("\r\n", $XF), implode("\r\n", $FILLS), implode("\r\n", $BR)],
+                    $template);
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            } else {
+                $this->_writeEntry($fh, $cdrec, $cfilename, $template);
+                $entries++;
+            }
+        }
+        $before_cd = ftell($fh);
+        fwrite($fh, $cdrec);
+
+        // end of central dir
+        fwrite($fh, $dirSignatureE);
+        fwrite($fh, pack('v', 0)); // number of this disk
+        fwrite($fh, pack('v', 0)); // number of the disk with the start of the central directory
+        fwrite($fh, pack('v', $entries)); // total # of entries "on this disk"
+        fwrite($fh, pack('v', $entries)); // total # of entries overall
+        fwrite($fh, pack('V', mb_strlen($cdrec, '8bit')));     // size of central dir
+        fwrite($fh, pack('V', $before_cd));         // offset to start of central dir
+        fwrite($fh, pack('v', mb_strlen($zipComments, '8bit'))); // .zip file comment length
+        fwrite($fh, $zipComments);
+
+        return true;
+    }
+
+    protected function _writeEntry($fh, &$cdrec, $cfilename, $data)
+    {
+        $zipSignature = "\x50\x4b\x03\x04"; // local file header signature
+        $dirSignature = "\x50\x4b\x01\x02"; // central dir header signature
+
+        $e = [];
+        $e['uncsize'] = mb_strlen($data, '8bit');
+
+        // if data to compress is too small, just store it
+        if ($e['uncsize'] < 256) {
+            $e['comsize'] = $e['uncsize'];
+            $e['vneeded'] = 10;
+            $e['cmethod'] = 0;
+            $zdata = $data;
+        } else { // otherwise, compress it
+            $zdata = gzcompress($data);
+            $zdata = substr(substr($zdata, 0, -4), 2); // fix crc bug (thanks to Eric Mueller)
+            $e['comsize'] = mb_strlen($zdata, '8bit');
+            $e['vneeded'] = 10;
+            $e['cmethod'] = 8;
+        }
+
+        $e['bitflag'] = 0;
+        $e['crc_32'] = crc32($data);
+
+        // Convert date and time to DOS Format, and set then
+        $lastmod_timeS = str_pad(decbin(date('s') >= 32 ? date('s') - 32 : date('s')), 5, '0', STR_PAD_LEFT);
+        $lastmod_timeM = str_pad(decbin(date('i')), 6, '0', STR_PAD_LEFT);
+        $lastmod_timeH = str_pad(decbin(date('H')), 5, '0', STR_PAD_LEFT);
+        $lastmod_dateD = str_pad(decbin(date('d')), 5, '0', STR_PAD_LEFT);
+        $lastmod_dateM = str_pad(decbin(date('m')), 4, '0', STR_PAD_LEFT);
+        $lastmod_dateY = str_pad(decbin(date('Y') - 1980), 7, '0', STR_PAD_LEFT);
+
+        # echo "ModTime: $lastmod_timeS-$lastmod_timeM-$lastmod_timeH (".date("s H H").")\n";
+        # echo "ModDate: $lastmod_dateD-$lastmod_dateM-$lastmod_dateY (".date("d m Y").")\n";
+        $e['modtime'] = bindec("$lastmod_timeH$lastmod_timeM$lastmod_timeS");
+        $e['moddate'] = bindec("$lastmod_dateY$lastmod_dateM$lastmod_dateD");
+
+        $e['offset'] = ftell($fh);
+
+        fwrite($fh, $zipSignature);
+        fwrite($fh, pack('s', $e['vneeded'])); // version_needed
+        fwrite($fh, pack('s', $e['bitflag'])); // general_bit_flag
+        fwrite($fh, pack('s', $e['cmethod'])); // compression_method
+        fwrite($fh, pack('s', $e['modtime'])); // lastmod_time
+        fwrite($fh, pack('s', $e['moddate'])); // lastmod_date
+        fwrite($fh, pack('V', $e['crc_32']));  // crc-32
+        fwrite($fh, pack('I', $e['comsize'])); // compressed_size
+        fwrite($fh, pack('I', $e['uncsize'])); // uncompressed_size
+        fwrite($fh, pack('s', mb_strlen($cfilename, '8bit')));   // file_name_length
+        fwrite($fh, pack('s', 0));  // extra_field_length
+        fwrite($fh, $cfilename);    // file_name
+        // ignoring extra_field
+        fwrite($fh, $zdata);
+
+        // Append it to central dir
+        $e['external_attributes'] = (substr($cfilename, -1) === '/' && !$zdata) ? 16 : 32; // Directory or file name
+        $e['comments'] = '';
+
+        $cdrec .= $dirSignature;
+        $cdrec .= "\x0\x0";                  // version made by
+        $cdrec .= pack('v', $e['vneeded']); // version needed to extract
+        $cdrec .= "\x0\x0";                  // general bit flag
+        $cdrec .= pack('v', $e['cmethod']); // compression method
+        $cdrec .= pack('v', $e['modtime']); // lastmod time
+        $cdrec .= pack('v', $e['moddate']); // lastmod date
+        $cdrec .= pack('V', $e['crc_32']);  // crc32
+        $cdrec .= pack('V', $e['comsize']); // compressed filesize
+        $cdrec .= pack('V', $e['uncsize']); // uncompressed filesize
+        $cdrec .= pack('v', mb_strlen($cfilename, '8bit')); // file name length
+        $cdrec .= pack('v', 0);                // extra field length
+        $cdrec .= pack('v', mb_strlen($e['comments'], '8bit')); // file comment length
+        $cdrec .= pack('v', 0); // disk number start
+        $cdrec .= pack('v', 0); // internal file attributes
+        $cdrec .= pack('V', $e['external_attributes']); // internal file attributes
+        $cdrec .= pack('V', $e['offset']); // relative offset of local header
+        $cdrec .= $cfilename;
+        $cdrec .= $e['comments'];
+    }
+
+    protected function _sheetToXML($idx, $template)
+    {
+        // locale floats fr_FR 1.234,56 -> 1234.56
+        $_loc = setlocale(LC_NUMERIC, 0);
+        setlocale(LC_NUMERIC, 'C');
+        $COLS = [];
+        $ROWS = [];
+        if (count($this->sheets[$idx]['rows'])) {
+            $COLS[] = '<cols>';
+            $CUR_ROW = 0;
+            $COL = [];
+            foreach ($this->sheets[$idx]['rows'] as $r) {
+                $CUR_ROW++;
+                $row = '';
+                $CUR_COL = 0;
+                $RH = 0; // row height
+                foreach ($r as $v) {
+                    $CUR_COL++;
+                    if (!isset($COL[$CUR_COL])) {
+                        $COL[$CUR_COL] = 0;
+                    }
+                    $cname = $this->num2name($CUR_COL) . $CUR_ROW;
+
+                    if ($v === null || $v === '') {
+                        $row .= '<c r="' . $cname . '"/>';
+                        continue;
+                    }
+
+                    $ct = $cv = $cf = null;
+                    $N = $A = $F = $FL = $C = $BG = 0;
+                    $BR = '';
+
+                    if (is_string($v)) {
+
+                        if ($v[0] === "\0") { // RAW value as string
+                            $v = substr($v, 1);
+                            $vl = mb_strlen($v);
+                        } else {
+                            if (strpos($v, '<') !== false) { // tags?
+                                if (strpos($v, '<b>') !== false) {
+                                    $F += self::F_BOLD;
+                                }
+                                if (strpos($v, '<i>') !== false) {
+                                    $F += self::F_ITALIC;
+                                }
+                                if (strpos($v, '<u>') !== false) {
+                                    $F += self::F_UNDERLINE;
+                                }
+                                if (strpos($v, '<s>') !== false) {
+                                    $F += self::F_STRIKE;
+                                }
+                                if (preg_match('/<style([^>]+)>/', $v, $m)) {
+
+                                    if (preg_match('/ color="([^"]+)"/', $m[1], $m2)) {
+
+                                        $F += self::F_COLOR;
+                                        $c = ltrim($m2[1], '#');
+                                        $C = strlen($c) === 8 ? $c : ('FF' . $c);
+                                    }
+                                    if (preg_match('/ bgcolor="([^"]+)"/', $m[1], $m2)) {
+                                        $FL += self::FL_COLOR;
+                                        $c = ltrim($m2[1], '#');
+                                        $BG = strlen($c) === 8 ? $c : ('FF' . $c);
+                                    }
+                                    if (preg_match('/ height="([^"]+)"/', $m[1], $m2)) {
+                                        $RH = $m2[1];
+                                    }
+                                    if (preg_match('/ nf="([^"]+)"/', $m[1], $m2)) {
+                                        $c = htmlspecialchars_decode($m2[1], ENT_QUOTES);
+                                        $N = $this->getNumFmtId($c);
+                                    }
+                                    if (preg_match('/ border="([^"]+)"/', $m[1], $m2)) {
+                                        $b = htmlspecialchars_decode($m2[1], ENT_QUOTES);
+                                        if ($b && $b !== 'none') {
+                                            $BR = $b;
+                                        }
+                                    }
+                                }
+                                if (strpos($v, '<left>') !== false) {
+                                    $A += self::A_LEFT;
+                                }
+                                if (strpos($v, '<center>') !== false) {
+                                    $A += self::A_CENTER;
+                                }
+                                if (strpos($v, '<right>') !== false) {
+                                    $A += self::A_RIGHT;
+                                }
+                                if (strpos($v, '<top>') !== false) {
+                                    $A += self::A_TOP;
+                                }
+                                if (strpos($v, '<middle>') !== false) {
+                                    $A += self::A_MIDDLE;
+                                }
+                                if (strpos($v, '<bottom>') !== false) {
+                                    $A += self::A_BOTTOM;
+                                }
+                                if (strpos($v, '<wraptext>') !== false) {
+                                    $A += self::A_WRAPTEXT;
+                                }
+                                if (preg_match('/<a href="(https?:\/\/[^"]+)">(.*?)<\/a>/i', $v, $m)) {
+                                    $h = explode('#', $m[1]);
+                                    $this->extLinkId++;
+                                    $this->sheets[$idx]['hyperlinks'][] = ['ID' => 'rId' . $this->extLinkId, 'R' => $cname, 'H' => $h[0], 'L' => isset($h[1]) ? $h[1] : ''];
+                                    $F += self::F_HYPERLINK; // Hyperlink
+                                }
+                                if (preg_match('/<a href="(mailto?:[^"]+)">(.*?)<\/a>/i', $v, $m)) {
+                                    $this->extLinkId++;
+                                    $this->sheets[$idx]['hyperlinks'][] = ['ID' => 'rId' . $this->extLinkId, 'R' => $cname, 'H' => $m[1], 'L' => ''];
+                                    $F += self::F_HYPERLINK; // mailto hyperlink
+                                }
+                                if (preg_match('/<a href="([^"]+![^"]+)">(.*?)<\/a>/i', $v, $m)) {
+                                    $this->sheets[$idx]['hyperlinks'][] = ['ID' => null, 'R' => $cname, 'H' => null, 'L' => $m[1]];
+                                    $F += self::F_HYPERLINK; // internal hyperlink
+                                }
+                                if (preg_match('/<f([^>]*)>/', $v, $m)) {
+                                    $cf = strip_tags($v);
+                                    $v = 'formula';
+                                    if (preg_match('/ v="([^"]+)"/', $m[1], $m2)) {
+                                        $v = $m2[1];
+                                    }
+                                } else {
+                                    $v = strip_tags($v);
+                                }
+                            } // tags
+                            $vl = mb_strlen($v);
+                            if ($N) {
+                                $cv = ltrim($v, '+');
+                            } elseif ($v === '0' || preg_match('/^[-+]?[1-9]\d{0,14}$/', $v)) { // Integer as General
+                                $cv = ltrim($v, '+');
+                                if ($vl > 10) {
+                                    $N = self::N_INT; // [1] 0
+                                }
+                            } elseif (preg_match('/^[-+]?(0|[1-9]\d*)\.(\d+)$/', $v, $m)) {
+                                $cv = ltrim($v, '+');
+                                if (strlen($m[2]) < 3) {
+                                    $N = self::N_DEC;
+                                }
+                            } elseif (preg_match('/^\$[-+]?[0-9\.]+$/', $v)) { // currency $?
+                                $N = self::N_DOLLAR;
+                                $cv = ltrim($v, '+$');
+                            } elseif (preg_match('/^[-+]?[0-9\.]+( ₽| €)$/u', $v, $m)) { // currency ₽ €?
+                                if ($m[1] === ' ₽') {
+                                    $N = self::N_RUB;
+                                } elseif ($m[1] === ' €') {
+                                    $N = self::N_EURO;
+                                }
+                                $cv = trim($v, ' +₽€');
+                            } elseif (preg_match('/^([-+]?\d+)%$/', $v, $m)) {
+                                $cv = round($m[1] / 100, 2);
+                                $N = self::N_PERCENT_INT; // [9] 0%
+                            } elseif (preg_match('/^([-+]?\d+\.\d+)%$/', $v, $m)) {
+                                $cv = round($m[1] / 100, 4);
+                                $N = self::N_PRECENT_DEC; // [10] 0.00%
+                            } elseif (preg_match('/^(\d\d\d\d)-(\d\d)-(\d\d)$/', $v, $m)) {
+                                $cv = $this->date2excel($m[1], $m[2], $m[3]);
+                                $N = self::N_DATE; // [14] mm-dd-yy
+                            } elseif (preg_match('/^(\d\d)\/(\d\d)\/(\d\d\d\d)$/', $v, $m)) {
+                                $cv = $this->date2excel($m[3], $m[2], $m[1]);
+                                $N = self::N_DATE; // [14] mm-dd-yy
+                            } elseif (preg_match('/^(\d\d):(\d\d):(\d\d)$/', $v, $m)) {
+                                $cv = $this->date2excel(0, 0, 0, $m[1], $m[2], $m[3]);
+                                $N = self::N_TIME; // time
+                            } elseif (preg_match('/^(\d\d\d\d)-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d)$/', $v, $m)) {
+                                $cv = $this->date2excel($m[1], $m[2], $m[3], $m[4], $m[5], $m[6]);
+                                $N = ((int)$m[1] === 0) ? self::N_TIME : self::N_DATETIME; // [22] m/d/yy h:mm
+                            } elseif (preg_match('/^(\d\d)\/(\d\d)\/(\d\d\d\d) (\d\d):(\d\d):(\d\d)$/', $v, $m)) {
+                                $cv = $this->date2excel($m[3], $m[2], $m[1], $m[4], $m[5], $m[6]);
+                                $N = self::N_DATETIME; // [22] m/d/yy h:mm
+                            } elseif (preg_match('/^[0-9+-.]+$/', $v)) { // Long ?
+                                $A += ($A & (self::A_LEFT | self::A_CENTER)) ? 0 : self::A_RIGHT;
+                            } elseif (preg_match('/^https?:\/\/\S+$/i', $v)) {
+                                $h = explode('#', $v);
+                                $this->extLinkId++;
+                                $this->sheets[$idx]['hyperlinks'][] = ['ID' => 'rId' . $this->extLinkId, 'R' => $cname, 'H' => $h[0], 'L' => isset($h[1]) ? $h[1] : ''];
+                                $F += self::F_HYPERLINK; // Hyperlink
+                            } elseif (preg_match("/^[a-zA-Z0-9_\.\-]+@([a-zA-Z0-9][a-zA-Z0-9\-]*\.)+[a-zA-Z]{2,}$/", $v)) {
+                                $this->extLinkId++;
+                                $this->sheets[$idx]['hyperlinks'][] = ['ID' => 'rId' . $this->extLinkId, 'R' => $cname, 'H' => 'mailto:' . $v, 'L' => ''];
+                                $F += self::F_HYPERLINK; // Hyperlink
+                            }
+                            if (($N === self::N_DATE || $N === self::N_DATETIME) && $cv < 0) {
+                                $cv = null;
+                                $N = 0;
+                            }
+                        }
+                        if ($cv === null) {
+
+                            $v = $this->esc($v);
+
+                            if ($cf) {
+                                $ct = 'str';
+                                $cv = $v;
+                            } elseif (mb_strlen($v) > 160) {
+                                $ct = 'inlineStr';
+                                $cv = $v;
+                            } else {
+                                $ct = 's'; // shared string
+                                $cv = false;
+                                $skey = '~' . $v;
+                                if (isset($this->SI_KEYS[$skey])) {
+                                    $cv = $this->SI_KEYS[$skey];
+                                }
+                                if ($cv === false) {
+                                    $this->SI[] = $v;
+                                    $cv = count($this->SI) - 1;
+                                    $this->SI_KEYS[$skey] = $cv;
+                                }
+                            }
+                        }
+                    } elseif (is_int($v)) {
+                        $vl = mb_strlen((string)$v);
+                        $cv = $v;
+                    } elseif (is_float($v)) {
+                        $vl = mb_strlen((string)$v);
+                        $cv = $v;
+                    } elseif ($v instanceof \DateTime) {
+                        $vl = 16;
+                        $cv = $this->date2excel($v->format('Y'), $v->format('m'), $v->format('d'), $v->format('H'), $v->format('i'), $v->format('s'));
+                        $N = self::N_DATETIME; // [22] m/d/yy h:mm
+                    } else {
+                        continue;
+                    }
+
+                    $COL[$CUR_COL] = max($vl, $COL[$CUR_COL]);
+
+                    $cs = 0;
+
+                    if (($N + $A + $F + $FL > 0) || $BR !== '') {
+
+                        if ($FL === self::FL_COLOR) {
+                            $FL += self::FL_SOLID;
+                        }
+                        if (($F & self::F_HYPERLINK) && !($F & self::F_COLOR)) {
+                            $F += self::F_COLOR;
+                            $C = 'FF0563C1';
+                        }
+
+                        $XF_KEY = $N . '-' . $A . '-' . $F . '-' . $FL . '-' . $C . '-' . $BG . '-' . $BR;
+//                        echo $cname .'='.$XF_KEY.PHP_EOL;
+                        if (isset($this->XF_KEYS[$XF_KEY])) {
+                            $cs = $this->XF_KEYS[$XF_KEY];
+                        }
+                        if ($cs === 0) {
+                            $cs = count($this->XF);
+                            $this->XF_KEYS[$XF_KEY] = $cs;
+                            $this->XF[] = [$N, $A, $F, $FL, $C, $BG, $BR];
+                        }
+                    }
+
+                    $row .= '<c r="' . $cname . '"' . ($ct ? ' t="' . $ct . '"' : '') . ($cs ? ' s="' . $cs . '"' : '') . '>'
+                        . ($cf ? '<f>' . $cf . '</f>' : '')
+                        . ($ct === 'inlineStr' ? '<is><t>' . $cv . '</t></is>' : '<v>' . $cv . '</v>') . "</c>\r\n";
+                }
+                $ROWS[] = '<row r="' . $CUR_ROW . '"' . ($RH ? ' customHeight="1" ht="' . $RH . '"' : '') . '>' . $row . "</row>";
+            }
+            foreach ($COL as $k => $max) {
+                $w = isset($this->sheets[$idx]['colwidth'][$k]) ? $this->sheets[$idx]['colwidth'][$k] : min($max + 1, 60);
+                $COLS[] = '<col min="' . $k . '" max="' . $k . '" width="' . $w . '" customWidth="1" />';
+            }
+            $COLS[] = '</cols>';
+            $REF = 'A1:' . $this->num2name(count($COL)) . $CUR_ROW;
+        } else {
+            $ROWS[] = '<row r="1"><c r="A1" t="s"><v>0</v></c></row>';
+            $REF = 'A1:A1';
+        }
+
+        $AUTOFILTER = '';
+        if ($this->sheets[$idx]['autofilter']) {
+            $AUTOFILTER = '<autoFilter ref="' . $this->sheets[$idx]['autofilter'] . '" />';
+        }
+
+        $MERGECELLS = [];
+        if (count($this->sheets[$idx]['mergecells'])) {
+            $MERGECELLS[] = '';
+            $MERGECELLS[] = '<mergeCells count="' . count($this->sheets[$idx]['mergecells']) . '">';
+            foreach ($this->sheets[$idx]['mergecells'] as $m) {
+                $MERGECELLS[] = '<mergeCell ref="' . $m . '"/>';
+            }
+            $MERGECELLS[] = '</mergeCells>';
+        }
+
+        $HYPERLINKS = [];
+        if (count($this->sheets[$idx]['hyperlinks'])) {
+            $HYPERLINKS[] = '<hyperlinks>';
+            foreach ($this->sheets[$idx]['hyperlinks'] as $h) {
+                $HYPERLINKS[] = '<hyperlink ref="' . $h['R'] . '"' . ($h['ID'] ? ' r:id="' . $h['ID'] . '"' : '') . ' location="' . $this->esc($h['L']) . '" display="' . $this->esc($h['H'] . ($h['L'] ? ' - ' . $h['L'] : '')) . '" />';
+            }
+            $HYPERLINKS[] = '</hyperlinks>';
+        }
+
+        //restore locale
+        setlocale(LC_NUMERIC, $_loc);
+
+        return str_replace(['{REF}', '{COLS}', '{ROWS}', '{AUTOFILTER}', '{MERGECELLS}', '{HYPERLINKS}'],
+            [$REF,
+                implode("\r\n", $COLS),
+                implode("\r\n", $ROWS),
+                $AUTOFILTER,
+                implode("\r\n", $MERGECELLS),
+                implode("\r\n", $HYPERLINKS)
+            ],
+            $template);
+    }
+
+    public function num2name($num)
+    {
+        $numeric = ($num - 1) % 26;
+        $letter = chr(65 + $numeric);
+        $num2 = (int)(($num - 1) / 26);
+        if ($num2 > 0) {
+            return $this->num2name($num2) . $letter;
+        }
+        return $letter;
+    }
+
+    public function date2excel($year, $month, $day, $hours = 0, $minutes = 0, $seconds = 0)
+    {
+
+        $excelTime = (($hours * 3600) + ($minutes * 60) + $seconds) / 86400;
+
+        if ((int)$year === 0) {
+            return $excelTime;
+        }
+
+        // self::CALENDAR_WINDOWS_1900
+        $excel1900isLeapYear = True;
+        if (($year === 1900) && ($month <= 2)) {
+            $excel1900isLeapYear = False;
+        }
+        $myExcelBaseDate = 2415020;
+
+        // Julian base date Adjustment
+        if ($month > 2) {
+            $month -= 3;
+        } else {
+            $month += 9;
+            --$year;
+        }
+        $century = substr($year, 0, 2);
+        $decade = substr($year, 2, 2);
+        //    Calculate the Julian Date, then subtract the Excel base date (JD 2415020 = 31-Dec-1899 Giving Excel Date of 0)
+        $excelDate = floor((146097 * $century) / 4) + floor((1461 * $decade) / 4) + floor((153 * $month + 2) / 5) + $day + 1721119 - $myExcelBaseDate + $excel1900isLeapYear;
+
+        return (float)$excelDate + $excelTime;
+    }
+
+    public function setDefaultFont($name)
+    {
+        $this->defaultFont = $name;
+        return $this;
+    }
+
+    public function setDefaultFontSize($size)
+    {
+        $this->defaultFontSize = $size;
+        return $this;
+    }
+
+    public function autoFilter($range)
+    {
+        $this->sheets[$this->curSheet]['autofilter'] = $range;
+        return $this;
+    }
+
+    public function mergeCells($range)
+    {
+        $this->sheets[$this->curSheet]['mergecells'][] = $range;
+        return $this;
+    }
+
+    public function setColWidth($col, $width)
+    {
+        $this->sheets[$this->curSheet]['colwidth'][$col] = $width;
+        return $this;
+    }
+
+    public function esc($str)
+    {
+        // XML UTF-8: #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
+        // but we use fast version
+        return str_replace(['&', '<', '>', "\x00", "\x03", "\x0B"], ['&amp;', '&lt;', '&gt;', '', '', ''], $str);
+    }
+
+    public function getNumFmtId($code)
+    {
+        if (isset($this->NF[$code])) { // id?
+            return (int)$code;
+        }
+        if (isset($this->NF_KEYS[$code])) {
+            return $this->NF_KEYS[$code];
+        }
+        $id = 197 + count($this->NF); // custom
+        $this->NF[$id] = $code;
+        $this->NF_KEYS[$code] = $id;
+        return $id;
+    }
+
+    public static function raw($value)
+    {
+        return "\0" . (string)$value;
+    }
+
+}
\ No newline at end of file
diff --git a/spreadSheetReader/read_write_xlsx.php b/spreadSheetReader/read_write_xlsx.php
new file mode 100644
index 0000000..a8625ed
--- /dev/null
+++ b/spreadSheetReader/read_write_xlsx.php
@@ -0,0 +1,29 @@
+<?php
+require $_SERVER['DOCUMENT_ROOT'] . '/spreadSheetReader/SimpleXLSX.php';
+require $_SERVER['DOCUMENT_ROOT'] . '/spreadSheetReader/SimpleXLSXGen.php';
+
+function read_xls_file($filename){
+    $fileContent = [];
+    if ($xlsx = SimpleXLSX::parse($filename)) {
+        $fileContent = ($xlsx->rows());
+    } else {
+        echo SimpleXLSX::parseError();
+    }
+    return $fileContent;
+}
+
+
+
+function write_xlsxFile($filename, $data) {
+    $xlsx = SimpleXLSXGen::fromArray($data);
+    $xlsx->saveAs($filename);
+}
+
+function download_xlsxFile($data) {
+    $xlsxArray = read_xls_file($_SERVER['DOCUMENT_ROOT'] ."/data/data.xlsx");
+    foreach ($data as $row) {
+        array_push($xlsxArray, $row);
+    }
+    $xlsx = SimpleXLSXGen::fromArray($xlsxArray);
+    $xlsx->downloadAs("data.xlsx");
+}
\ No newline at end of file
diff --git a/taskExecuter.php b/taskExecuter.php
index fb9b262..5211be7 100644
--- a/taskExecuter.php
+++ b/taskExecuter.php
@@ -1,8 +1,8 @@
 <?php
 include "zefixAPI.php";
-include 'simpleXMLElement.php';
+include "spreadSheetReader/read_write_xlsx.php";
 
-$maxExecutionTime = 480;
+$maxExecutionTime = 61;
 $taskDir = 'tasks';
 $downloadDir = 'download';
 $latesEndTime = time() + $maxExecutionTime;
@@ -18,12 +18,6 @@ function doRequest($data, $filename, $username, $password)
     echo "<br>";
     $response = sendAPICompanySearchRequest($username, $password, $data);
     $companyArray = json_decode($response, true);
-    // TODO implement
-    $companyData = [
-        ['John', 30, 'New York'],
-        ['Alice', 25, 'Los Angeles'],
-        ['Bob', 35, 'Chicago'],
-    ];
     $companyData = array();
     foreach ($companyArray as $company) {
         $companyData[] = [$company['name'],$company['ehraid'],$company['uid'],$company['chid'],$company['legalSeat'],$company['registryOfCommerceId'],$company['legalForm']['name']['de'],$company['status'],$company['sogcDate'],$company['deletionDate']];
@@ -32,7 +26,6 @@ function doRequest($data, $filename, $username, $password)
         // If File doesn't exist yet
         $file = fopen($filename, 'w');
         if($file) {
-            // TODO change headers
             fputcsv($file, ['name', 'ehraid', 'uid', 'chid', 'legalSeat', 'registryOfCommerceId', 'legalForm', 'status', 'sogcDate', 'deletionDate']);
         }
     } else {
@@ -54,46 +47,18 @@ function sendEmail($emailAddress, $filename)
 // Stop executing bevore reaching PHP Max Execution Time
 function convertcsvToXlsx(string $csvFile, string $xlsxFile)
 {
-    // Read the CSV file
-    $csvData = file_get_contents($csvFile);
+    $csvData = [];
 
-    // Split the CSV data into rows
-    $csvRows = explode("\n", $csvData);
-
-    // Create a SimpleXMLElement for the workbook
-    $xmlWorkbook = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?>
-        <Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
-          xmlns:o="urn:schemas-microsoft-com:office:office"
-          xmlns:x="urn:schemas-microsoft-com:office:excel"
-          xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
-          xmlns:html="http://www.w3.org/TR/REC-html40">
-          <Worksheet ss:Name="Sheet1">
-            <Table>
-            </Table>
-          </Worksheet>
-        </Workbook>');
-
-    // Reference to the Worksheet's Table
-    $xmlTable = $xmlWorkbook->Worksheet->Table;
-
-    // Loop through CSV rows and create XML elements
-    foreach ($csvRows as $csvRow) {
-        // Split the CSV row into cells
-        $csvCells = str_getcsv($csvRow);
-
-        // Create a new row in the XML table
-        $xmlRow = $xmlTable->addChild('Row');
-
-        // Add cells to the row
-        foreach ($csvCells as $csvCell) {
-            $xmlCell = $xmlRow->addChild('Cell');
-            $xmlData = $xmlCell->addChild('Data', htmlspecialchars($csvCell));
-            $xmlData->addAttribute('ss:Type', 'String');
+    if (($handle = fopen($csvFile, "r")) !== false) {
+        while (($data = fgetcsv($handle, 1000, ",")) !== false) {
+            $csvData[] = $data;
         }
+        fclose($handle);
+    } else {
+        echo "Failed to open $csvFile for reading.";
     }
 
-    // Save the XML data to a file
-    $xmlWorkbook->asXML($xlsxFile);
+    write_xlsxFile($xlsxFile, $csvData);
 }
 
 while($latesEndTime - time() > 60){
@@ -102,8 +67,8 @@ while($latesEndTime - time() > 60){
         $taskfiles = scandir($taskDir);
         $taskfiles = array_diff($taskfiles, array('.', '..'));
         sort($taskfiles);
-        // if there are any taks which are older then 1 Minutes. To be sure the file writing process is finished.
-        if(count($taskfiles) > 0 && intval(explode("-", $taskfiles[0])[0]) + 60 < time()) {
+        // if there are any taks which are older then 0.5 Minutes. To be sure the file writing process is finished.
+        if(count($taskfiles) > 0 && intval(explode("-", $taskfiles[0])[0]) + 30 < time()) {
             $taskString = file_get_contents($taskDir.'/'.$taskfiles[0]);
             $task = json_decode($taskString, true);
 
@@ -141,5 +106,4 @@ while($latesEndTime - time() > 60){
     }
 }
 
-
 ?>
\ No newline at end of file