This library is designed to be lightweight, and have minimal memory usage.
It is designed to output an Excel compatible spreadsheet in (Office 2007+) xlsx format, with just basic features supported:
- supports PHP 5.2.1+
- takes UTF-8 encoded input
- multiple worksheets
- supports currency/date/numeric cell formatting, simple formulas
- supports basic cell styling
- supports writing huge 100K+ row spreadsheets
Never run out of memory with PHPExcel again.
Simple PHP CLI example:
$data = array(
    array('year','month','amount'),
    array('2003','1','220'),
    array('2003','2','153.5'),
);
$writer = new XLSXWriter();
$writer->writeSheet($data);
$writer->writeToFile('output.xlsx');Simple/Advanced Cell Formats:
$header = array(
  'created'=>'date',
  'product_id'=>'integer',
  'quantity'=>'#,##0',
  'amount'=>'price',
  'description'=>'string',
  'tax'=>'[$$-1009]#,##0.00;[RED]-[$$-1009]#,##0.00',
);
$data = array(
    array('2015-01-01',873,1,'44.00','misc','=D2*0.05'),
    array('2015-01-12',324,2,'88.00','none','=D3*0.05'),
);
$writer = new XLSXWriter();
$writer->writeSheetHeader('Sheet1', $header );
foreach($data as $row)
	$writer->writeSheetRow('Sheet1', $row );
$writer->writeToFile('example.xlsx');50000 rows: (1.4s, 0MB memory usage)
include_once("xlsxwriter.class.php");
$writer = new XLSXWriter();
$writer->writeSheetHeader('Sheet1', array('c1'=>'integer','c2'=>'integer','c3'=>'integer','c4'=>'integer') );
for($i=0; $i<50000; $i++)
{
    $writer->writeSheetRow('Sheet1', array($i, $i+1, $i+2, $i+3) );
}
$writer->writeToFile('huge.xlsx');
echo '#'.floor((memory_get_peak_usage())/1024/1024)."MB"."\n";| rows | time | memory | 
|---|---|---|
| 50000 | 1.4s | 0MB | 
| 100000 | 2.7s | 0MB | 
| 150000 | 4.1s | 0MB | 
| 200000 | 5.7s | 0MB | 
| 250000 | 7.0s | 0MB | 
Simple cell formats map to more advanced cell formats
| simple formats | format code | 
|---|---|
| string | @ | 
| integer | 0 | 
| date | YYYY-MM-DD | 
| datetime | YYYY-MM-DD HH:MM:SS | 
| time | HH:MM:SS | 
| price | #,##0.00 | 
| dollar | [$$-1009]#,##0.00;[RED]-[$$-1009]#,##0.00 | 
| euro | #,##0.00 [$€-407];[RED]-#,##0.00 [$€-407] | 
Basic cell styles have been available since version 0.30
| style | allowed values | 
|---|---|
| font | Arial, Times New Roman, Courier New, Comic Sans MS | 
| font-size | 8,9,10,11,12 ... | 
| font-style | bold, italic, underline, strikethrough or multiple ie: 'bold,italic' | 
| border | left, right, top, bottom, or multiple ie: 'top,left' | 
| border-style | thin, medium, thick, dashDot, dashDotDot, dashed, dotted, double, hair, mediumDashDot, mediumDashDotDot, mediumDashed, slantDashDot | 
| border-color | #RRGGBB, ie: #ff99cc or #f9c | 
| color | #RRGGBB, ie: #ff99cc or #f9c | 
| fill | #RRGGBB, ie: #eeffee or #efe | 
| halign | general, left, right, justify, center | 
| valign | bottom, center, distributed |