office 2007未识别PHP Excel导出

我已经使用stack overflow好几年了，但直到现在才有了一个帐户，因为我从来没有被困到需要问问题的地步（不是因为我聪明，因为我的代码很简单！），不管怎样，请继续回答我的问题

我正在通过PHP导出一个.xls格式的表，其中包含MYSQL表中几个表的信息。所有的信息和样式都非常完美。唯一的问题是，当它在office 2007中打开时，我收到以下错误消息：

您试图打开的文件“export.xls”的格式与文件扩展名指定的格式不同。打开该文件之前，请确认该文件没有损坏，并且来源可靠。确实要查看该文件吗

总而言之，所有的信息都是从DB SUCCESS中提取出来的，所有的样式都是有效的-我知道这是真的，因为当我在弹出的对话框中单击“是”时，我看到所有的东西都被完美地布置好了

下面是Excel exporter类：

/**
* Class for generating xml with multiple spreadsheets
* @author Marin Crnković
* @version 0.9
* @update_date 21.01.2009
*/

class excel_xml {

var $xml_data;

var $nl;

var $tab;

var $cols;

var $rows;

var $worksheets;

var $counters;

var $xml;

/**
* Constructor
*/
function excel_xml(){
    $this->column_width = 150;
    $this->debug        = false;
    $this->cols         = array();
    $this->row_array    = array();
    $this->rows         = array();
    $this->worksheets   = array();
    $this->counters     = array();
    $this->nl           = "\n";
    $this->tab          = "\t";
}

/**
* Set debug
*/
function debug() {
    $this->debug = true;
}

/**
* Generate xml
* @returns string
*/
function generate() {
    // Create header
    $xml = $this->create_header().$this->nl;
    // Put all worksheets
    $xml .= join('', $this->worksheets).$this->nl;
    // Finish with a footer
    $xml .= $this->create_footer();
    $this->xml = $xml;
    return $this->xml;
}

/**
* Create worksheet
* Uppon creating a worksheet, delete counters
* @param string $worksheet_name: name of the worksheet
*/
function create_worksheet($worksheet_name) {
    $worksheet = '<Worksheet ss:Name="'.$worksheet_name.'">';
    $worksheet .= $this->create_table();
    $worksheet .= '<WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">
    <ProtectObjects>False</ProtectObjects>
    <ProtectScenarios>False</ProtectScenarios>
    </WorksheetOptions>
    </Worksheet>';

    // Unset the counters and rows so you can generate another worksheet table
    $this->counters     = array();
    $this->row_array    = array();
    $this->rows         = '';

    // Add generated worksheet to the worksheets array
    $this->worksheets[] = $worksheet;
}

/**
* Create table
* @returns string
*/
function create_table() {
    // Create rows with the method that automaticaly sets counters for number of columns and rows
    $rows = $this->create_rows();

    // Table header
    $table = '<Table ss:ExpandedColumnCount="'.$this->counters['cols'].'" ss:ExpandedRowCount="'.$this->counters['rows'].'" x:FullColumns="1" x:FullRows="1">'.$this->nl;

    // Columns data (width mainly)
    for($i = 1; $i <= $this->counters['cols']; $i++) {
        $table .= '<Column ss:Index="'.$i.'" ss:Width="'.$this->column_width.'" />'.$this->nl;
    }
    // Insert all rows
    $table .= join('', $rows);

    // End table
    $table .= '</Table>'.$this->nl;
    return $table;
}

/**
* Add another row into the array
* @param mixed $array: array with row cells
* @param mixed $style: default null, if set, adds style to the array
*/
function add_row($array, $style = null) {
    if(!is_array($array)) {
        // Asume the delimiter is , or ;
        $array = str_replace(',', ';', $array);
        $array = explode(';', $array);
    }
    if(!is_null($style)) {
        $style_array = array('attach_style' => $style);
        $array = array_merge($array, $style_array);
    }

    $this->row_array[] = $array;
}

/**
* Create rows
* @returns array
*/
function create_rows() {
    $row_array = $this->row_array;
    if(!is_array($row_array)) return;


    $cnt = 0;
    $row_cell = array();
    foreach($row_array as $row_data) {
        $cnt++;

        // See if there are styles attached
        $style = null;
        if($row_data['attach_style']) {
            $style = $row_data['attach_style'];
            unset($row_data['attach_style']);
        }

        // Store the counter of rows
        $this->counters['rows'] = $cnt;

        $cells = '';
        $cell_cnt = 0;
        foreach($row_data as $key => $cell_data) {
            $cell_cnt++;

            $cells .= $this->nl.$this->prepare_cell($cell_data, $style);
        }

        // Store the number of cells in row
        $row_cell[$cnt][] = $cell_cnt;

        $this->rows[] = '<Row>'.$cells.$this->nl.'</Row>'.$this->nl;
    }

    // Find out max cells in all rows
    $max_cells = max($row_cell);
    $this->counters['cols'] = $max_cells[0];

    return $this->rows;
}

/**
* Prepare cell
* @param string $cell_data: string for a row cell
* @returns string
*/
function prepare_cell($cell_data, $style = null) {

    $str = str_replace("\t", " ", $cell_data);          // replace tabs with spaces
    $str = str_replace("\r\n", "\n", $str);             // replace windows-like new-lines with unix-like
    $str = str_replace('"',  '""', $str);               // escape quotes so we support multiline cells now
    preg_match('#\"\"#', $str) ? $str = '"'.$str.'"' : $str; // If there are double doublequotes, encapsulate str in doublequotes

    // Formating: bold
    if(!is_null($style)) {
        $style = ' ss:StyleID="'.$style.'"';
    } elseif (preg_match('/^\*([^\*]+)\*$/', $str, $out)) {
        $style  = ' ss:StyleID="bold"';
        $str    = $out[1];
    }

    if (preg_match('/\|([\d]+)$/', $str, $out)) {
        $merge  = ' ss:MergeAcross="'.$out[1].'"';
        $str    = str_replace($out[0], '', $str);
    }
    // Get type
    $type = preg_match('/^([\d]+)$/', $str) ? 'Number' : 'String';

    return '<Cell'.$style.$merge.'><Data ss:Type="'.$type.'">'.$str.'</Data></Cell>';
}

/**
* Create header
* @returns string
*/
function create_header() {
    if (is_array($this->styles)) {
        $styles = join('', $this->styles);
    }
    $header = <<<EOF
<?xml version="1.0"?>
<?mso-application progid="Excel.Sheet"?>
<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">
<OfficeDocumentSettings xmlns="urn:schemas-microsoft-com:office:office">
    <DownloadComponents/>
    <LocationOfComponents HRef="file:///\\"/>
</OfficeDocumentSettings>
<ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">
    <WindowHeight>12525</WindowHeight>
    <WindowWidth>15195</WindowWidth>
    <WindowTopX>480</WindowTopX>
    <WindowTopY>120</WindowTopY>
    <ActiveSheet>0</ActiveSheet>
    <ProtectStructure>False</ProtectStructure>
    <ProtectWindows>False</ProtectWindows>
</ExcelWorkbook>
<Styles>
    <Style ss:ID="Default" ss:Name="Normal">
        <Alignment ss:Vertical="Bottom"/>
        <Borders/>
        <Font/>
        <Interior/>
        <NumberFormat/>
        <Protection/>
    </Style>
    <Style ss:ID="bold">
        <Font ss:Bold="1" />
    </Style>
    $styles
</Styles>
 EOF;
    return $header;
}

/**
* Add style to the header
* @param string $style_id: id of the style the cells will reference to
* @param array $parameters: array with parameters
*/
function add_style($style_id, $parameters) {
    foreach($parameters as $param => $data) {
        switch($param) {
            case 'size':
                $font['ss:Size'] = $data;
            break;

            case 'font':
                $font['ss:FontName'] = $data;
            break;

            case 'color':
            case 'colour':
                $font['ss:Color'] = $data;
            break;

            case 'bgcolor':
                $interior['ss:Color'] = $data;
            break;

            case 'bold':
                $font['ss:Bold'] = $data;
            break;

            case 'italic':
                $font['ss:Italic'] = $data;
            break;

            case 'strike':
                $font['ss:StrikeThrough'] = $data;
            break;
        }
    }
    if(is_array($interior)) {
        foreach($interior as $param => $value) {
            $interiors .= ' '.$param.'="'.$value.'"';
        }
        $interior = '<Interior ss:Pattern="Solid"'.$interiors.' />'.$this->nl;
    }
    if(is_array($font)) {
        foreach($font as $param => $value) {
            $fonts .= ' '.$param.'="'.$value.'"';
        }
        $font = '<Font'.$fonts.' />'.$this->nl;
    }
    $this->styles[] = '
    <Style ss:ID="'.$style_id.'">
        '.$interior.$font.'
    </Style>';
}

/**
* Create footer
* @returns string
*/
function create_footer() {
    return '</Workbook>';
}

/**
* Output as download
*/
function download($filename) {

    if(!strlen($this->xml)) $this->generate();

    header("Cache-Control: public, must-revalidate");
    header("Pragma: no-cache");
    header("Content-Length: " .strlen($this->xml) );
    header("Content-Type: application/vnd.ms-excel");
    if(!$this->debug){
        header('Content-Disposition: attachment; filename="'.$filename.'"');
        header("Content-Transfer-Encoding: binary");
    } else {
        header("Content-Type: text/plain");
    }


    print $this->xml;
    exit;
}

---

您正在编写的文件是spreadsheetML格式，而不是BIFF（.xls）格式，因此MS Excel将对此差异提出投诉。尝试将其保存为.xml文件扩展名（因为这是您实际创建的）

您正在编写的文件是spreadsheetML格式，而不是BIFF（.xls）格式，因此MS Excel会对这种差异提出投诉。尝试将其保存为.xml文件扩展名（因为这是您实际创建的文件扩展名）

有办法更改吗？或者我必须找到另一个类来使用PHP创建excel文件吗？您可以为SpreadsheetML（.xml）提供正确的扩展名，或者找到一个可以编写BIFF文件（.xls）的库-我是PHPExcel的开发人员，因此我建议，尽管还有其他库可以工作，谢谢，我只是在看这个，但它看起来太复杂了，不适合我的需要，但它确实允许您编写真正格式化的OfficeOpenXML（.xlsx）或BIFF8（.xls）文件。。。而且它的使用非常简单；如果您想使用特定的Excel功能，如图表、条件格式等，它只会变得更加复杂。这太神奇了，我不反对。但我会再调查一遍的，谢谢！有没有办法改变这种状况？或者我必须找到另一个类来使用PHP创建excel文件吗？您可以为SpreadsheetML（.xml）提供正确的扩展名，或者找到一个可以编写BIFF文件（.xls）的库-我是PHPExcel的开发人员，因此我建议，尽管还有其他库可以工作，谢谢，我只是在看这个，但它看起来太复杂了，不适合我的需要，但它确实允许您编写真正格式化的OfficeOpenXML（.xlsx）或BIFF8（.xls）文件。。。而且它的使用非常简单；如果您想使用特定的Excel功能，如图表、条件格式等，它只会变得更加复杂。这太神奇了，我不反对。但我会再调查一遍的，谢谢！

    $excel = new excel_xml();

$header_style = array(
    'bold'       => 1,
    'size'       => '14',
    'color'      => '#FFFFFF',
    'bgcolor'    => '#4F81BD'
);

$excel->add_style('header', $header_style);

$header_style2 = array(
    'bold'       => 1,
    'color'      => '#FFFFFF',
    'bgcolor'    => '#92d050'
);

$excel->add_style('green', $header_style2);

$header_style3 = array(
    'bold'       => 1,
    'color'      => '#FFFFFF',
    'bgcolor'    => '#c00000'
);

$excel->add_style('error', $header_style3);
$header_style4 = array(
    'bold'       => 1,
    'color'      => '#FFFFFF',
    'bgcolor'    => '#e46d0a'
);

$excel->add_style('orange', $header_style4);
$header_style5 = array(
    'bold'       => 1,
    'color'      => '#FFFFFF',
    'bgcolor'    => '#c00000'
);

$excel->add_style('red', $header_style5);

/**
* Add row and attach the style "header" to it
*/
$excel->add_row(array(
    'col1',
    'col2',
    'col3',
    'col4',
    'col5'
), 'header');

/**
* Add some rows, if you encapsulate the string inside asterisks,
* they will get bold using the predefined style "bold"
* If you append "|x" where x is a number, that cell will be
* merged with the x following cells
*/


$excel->add_row(array(
    $Queried_Info_From_DB1,
    $Queried_Info_From_DB2,
    $Queried_Info_From_DB3,
    $Queried_Info_From_DB4,
    $Queried_Info_From_DB5
), 'red');                  



if(mysql_num_rows($result) == 0){ 

    $excel->add_row(array(
        'You have no info to display!|4'
    ), 'error');
}


/**
* Tell the object to create the worksheet.
* The passed string is the name of the worksheet
*/
$excel->create_worksheet('Your info');

/**
* If you invoke the generate method, you will get the
* XML returned or...
*/
$xml = $excel->generate();

/**
* ... you can pass the whole thing for download with
* the passed string as the filename
*/
$excel->download('Export');