面是总结的几个使用方法

include 'PHPExcel.php';
include 'PHPExcel/Writer/Excel2007.php';
//或者include 'PHPExcel/Writer/Excel5.php'; 用于输出.xls的
创建一个excel
$objPHPExcel = new PHPExcel();

保存excel—2007格式
$objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
//或者$objWriter = new PHPExcel_Writer_Excel5($objPHPExcel); 非2007格式
$objWriter->save("xxx.xlsx");
直接输出到浏览器
$objWriter = new PHPExcel_Writer_Excel5($objPHPExcel);
header("Pragma: public");
header("Expires: 0″);
header("Cache-Control:must-revalidate, post-check=0, pre-check=0″);
header("Content-Type:application/force-download");
header("Content-Type:application/vnd.ms-execl");
header("Content-Type:application/octet-stream");
header("Content-Type:application/download");;
header('Content-Disposition:attachment;filename="resume.xls"');
header("Content-Transfer-Encoding:binary");
$objWriter->save('php://output');

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设置excel的属性：
创建人
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw");
最后修改人
$objPHPExcel->getProperties()->setLastModifiedBy("Maarten Balliauw");
标题
$objPHPExcel->getProperties()->setTitle("Office 2007 XLSX Test Document");
题目
$objPHPExcel->getProperties()->setSubject("Office 2007 XLSX Test Document");
描述
$objPHPExcel->getProperties()->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.");
关键字
$objPHPExcel->getProperties()->setKeywords("office 2007 openxml php");
种类
$objPHPExcel->getProperties()->setCategory("Test result file");
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设置当前的sheet
$objPHPExcel->setActiveSheetIndex(0);

设置sheet的name
$objPHPExcel->getActiveSheet()->setTitle('Simple');

设置单元格的值
$objPHPExcel->getActiveSheet()->setCellValue('A1', 'String');
$objPHPExcel->getActiveSheet()->setCellValue('A2', 12);
$objPHPExcel->getActiveSheet()->setCellValue('A3', true);
$objPHPExcel->getActiveSheet()->setCellValue('C5', '=SUM(C2:C4)');
$objPHPExcel->getActiveSheet()->setCellValue('B8', '=MIN(B2:C5)');

合并单元格
$objPHPExcel->getActiveSheet()->mergeCells('A18:E22');

分离单元格
$objPHPExcel->getActiveSheet()->unmergeCells('A28:B28');

保护cell
$objPHPExcel->getActiveSheet()->getProtection()->setSheet(true); // Needs to be set to true in order to enable any worksheet protection!
$objPHPExcel->getActiveSheet()->protectCells('A3:E13', 'PHPExcel');

设置格式
// Set cell number formats
echo date('H:i:s') . " Set cell number formats\n";
$objPHPExcel->getActiveSheet()->getStyle('E4')->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_CURRENCY_EUR_SIMPLE);
$objPHPExcel->getActiveSheet()->duplicateStyle( $objPHPExcel->getActiveSheet()->getStyle('E4'), 'E5:E13' );

设置宽width
// Set column widths
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setAutoSize(true);
$objPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(12);

设置font
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFont()->setName('Candara');
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFont()->setSize(20);
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFont()->setBold(true);
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFont()->setUnderline(PHPExcel_Style_Font::UNDERLINE_SINGLE);
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFont()->getColor()->setARGB(PHPExcel_Style_Color::COLOR_WHITE);
$objPHPExcel->getActiveSheet()->getStyle('E1')->getFont()->getColor()->setARGB(PHPExcel_Style_Color::COLOR_WHITE);
$objPHPExcel->getActiveSheet()->getStyle('D13')->getFont()->setBold(true);
$objPHPExcel->getActiveSheet()->getStyle('E13')->getFont()->setBold(true);

设置align
$objPHPExcel->getActiveSheet()->getStyle('D11')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_RIGHT);
$objPHPExcel->getActiveSheet()->getStyle('D12')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_RIGHT);
$objPHPExcel->getActiveSheet()->getStyle('D13')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_RIGHT);
$objPHPExcel->getActiveSheet()->getStyle('A18')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY);
//垂直居中
$objPHPExcel->getActiveSheet()->getStyle('A18')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);

设置column的border
$objPHPExcel->getActiveSheet()->getStyle('A4')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getActiveSheet()->getStyle('B4')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getActiveSheet()->getStyle('C4')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getActiveSheet()->getStyle('D4')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getActiveSheet()->getStyle('E4')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

设置border的color
$objPHPExcel->getActiveSheet()->getStyle('D13')->getBorders()->getLeft()->getColor()->setARGB('FF993300');
$objPHPExcel->getActiveSheet()->getStyle('D13')->getBorders()->getTop()->getColor()->setARGB('FF993300');
$objPHPExcel->getActiveSheet()->getStyle('D13')->getBorders()->getBottom()->getColor()->setARGB('FF993300');
$objPHPExcel->getActiveSheet()->getStyle('E13')->getBorders()->getTop()->getColor()->setARGB('FF993300');
$objPHPExcel->getActiveSheet()->getStyle('E13')->getBorders()->getBottom()->getColor()->setARGB('FF993300');
$objPHPExcel->getActiveSheet()->getStyle('E13')->getBorders()->getRight()->getColor()->setARGB('FF993300');

设置填充颜色
$objPHPExcel->getActiveSheet()->getStyle('A1')->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID);
$objPHPExcel->getActiveSheet()->getStyle('A1')->getFill()->getStartColor()->setARGB('FF808080');
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID);
$objPHPExcel->getActiveSheet()->getStyle('B1')->getFill()->getStartColor()->setARGB('FF808080');

加图片
$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setName('Logo');
$objDrawing->setDescription('Logo');
$objDrawing->setPath('./images/officelogo.jpg');
$objDrawing->setHeight(36);
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

$objDrawing = new PHPExcel_Worksheet_Drawing();
$objDrawing->setName('Paid');
$objDrawing->setDescription('Paid');
$objDrawing->setPath('./images/paid.png');
$objDrawing->setCoordinates('B15');
$objDrawing->setOffsetX(110);
$objDrawing->setRotation(25);
$objDrawing->getShadow()->setVisible(true);
$objDrawing->getShadow()->setDirection(45);
$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

//处理中文输出问题

需要将字符串转化为UTF-8编码，才能正常输出，否则中文字符将输出为空白，如下处理：

 $str  = iconv('gb2312', 'utf-8', $str);

或者你可以写一个函数专门处理中文字符串：

function convertUTF8($str)
{
   if(empty($str)) return '';
   return  iconv('gb2312', 'utf-8', $str);
}

//从数据库输出数据处理方式

从数据库读取数据如：

$db = new Mysql($dbconfig);
$sql = "SELECT * FROM  表名";
$row = $db->GetAll($sql);  // $row 为二维数组

$count = count($row);
for ($i = 2; $i <= $count+1; $i++) {

 $objPHPExcel->getActiveSheet()->setCellValue('A' . $i, convertUTF8($row[$i-2][1]));
 $objPHPExcel->getActiveSheet()->setCellValue('B' . $i, convertUTF8($row[$i-2][2]));
 $objPHPExcel->getActiveSheet()->setCellValue('C' . $i, convertUTF8($row[$i-2][3]));
 $objPHPExcel->getActiveSheet()->setCellValue('D' . $i, convertUTF8($row[$i-2][4]));
 $objPHPExcel->getActiveSheet()->setCellValue('E' . $i, convertUTF8(date("Y-m-d", $row[$i-2][5])));
 $objPHPExcel->getActiveSheet()->setCellValue('F' . $i, convertUTF8($row[$i-2][6]));

 $objPHPExcel->getActiveSheet()->setCellValue('G' . $i, convertUTF8($row[$i-2][7]));
 $objPHPExcel->getActiveSheet()->setCellValue('H' . $i, convertUTF8($row[$i-2][8]));

}

在默认sheet后，创建一个worksheet
echo date('H:i:s') . " Create new Worksheet object\n";
$objPHPExcel->createSheet();

$objWriter = PHPExcel_IOFactory::createWriter($objExcel, 'Excel5');
$objWriter-save('php://output');