Export data to excel or word

In the actual develpment, we offen encounter such a problem about exporting data to excel or word, especially excel.

I can export data to excel from gridview, but i can not apply styles to the excel cell. Last week, i found how to set the style.

For example:

the following is from:http://en.wikipedia.org/wiki/Microsoft_Office_XML_formats

<?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">
  <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
    <Author>Darl McBride</Author>
    <LastAuthor>Bill Gates</LastAuthor>
    <Created>2007-03-15T23:04:04Z</Created>
    <Company>SCO Group, Inc.</Company>
    <Version>11.8036</Version>
  </DocumentProperties>
  <ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">
    <WindowHeight>6795</WindowHeight>
    <WindowWidth>8460</WindowWidth>
    <WindowTopX>120</WindowTopX>
    <WindowTopY>15</WindowTopY>
    <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="s21">
      <Font x:Family="Swiss" ss:Bold="1" />
    </Style>
  </Styles>
  <Worksheet ss:Name="Sheet1">
    <Table ss:ExpandedColumnCount="2" ss:ExpandedRowCount="5"
    x:FullColumns="1" x:FullRows="1">
      <Row>
        <Cell>
          <Data ss:Type="String">Text in cell A1</Data>
        </Cell>
      </Row>
      <Row>
        <Cell ss:StyleID="s21">
          <Data ss:Type="String">Bold text in A2</Data>
        </Cell>
      </Row>
      <Row ss:Index="4">
        <Cell ss:Index="2">
          <Data ss:Type="Number">43</Data>
        </Cell>
      </Row>
      <Row>
        <Cell ss:Index="2" ss:Formula="=R[-1]C/2">
          <Data ss:Type="Number">21.5</Data>
        </Cell>
      </Row>
    </Table>
    <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">
      <Print>
        <ValidPrinterInfo />
        <HorizontalResolution>600</HorizontalResolution>
        <VerticalResolution>600</VerticalResolution>
      </Print>
      <Selected />
      <Panes>
        <Pane>
          <Number>3</Number>
          <ActiveRow>5</ActiveRow>
          <ActiveCol>1</ActiveCol>
        </Pane>
      </Panes>
      <ProtectObjects>False</ProtectObjects>
      <ProtectScenarios>False</ProtectScenarios>
    </WorksheetOptions>
  </Worksheet>
</Workbook>

And i found a open source project http://excelpackage.codeplex.com/ which can easily create ooxml.

The same as excel, we can export data to word:

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<?mso-application progid="Word.Document"?>
<w:wordDocument
   xmlns:w="http://schemas.microsoft.com/office/word/2003/wordml"
   xmlns:wx="http://schemas.microsoft.com/office/word/2003/auxHint"
   xmlns:o="urn:schemas-microsoft-com:office:office"
   w:macrosPresent="no"
   w:embeddedObjPresent="no"
   w:ocxPresent="no"
   xml:space="preserve">
  <o:DocumentProperties>
    <o:Title>This is the title</o:Title>
    <o:Author>Darl McBride</o:Author>
    <o:LastAuthor>Bill Gates</o:LastAuthor>
    <o:Revision>1</o:Revision>
    <o:TotalTime>0</o:TotalTime>
    <o:Created>2007-03-15T23:05:00Z</o:Created>
    <o:LastSaved>2007-03-15T23:05:00Z</o:LastSaved>
    <o:Pages>1</o:Pages>
    <o:Words>6</o:Words>
    <o:Characters>40</o:Characters>
    <o:Company>SCO Group, Inc.</o:Company>
    <o:Lines>1</o:Lines>
    <o:Paragraphs>1</o:Paragraphs>
    <o:CharactersWithSpaces>45</o:CharactersWithSpaces>
    <o:Version>11.6359</o:Version>
  </o:DocumentProperties>
  <w:fonts>
    <w:defaultFonts
       w:ascii="Times New Roman"
       w:fareast="Times New Roman"
       w:h-ansi="Times New Roman"
       w:cs="Times New Roman" />
  </w:fonts>
  <w:styles>
    <w:versionOfBuiltInStylenames w:val="4" />
    <w:latentStyles w:defLockedState="off" w:latentStyleCount="156" />
    <w:style w:type="paragraph" w:default="on" w:styleId="Normal">
      <w:name w:val="Normal" />
      <w:rPr>
        <wx:font wx:val="Times New Roman" />
        <w:sz w:val="24" />
        <w:sz-cs w:val="24" />
        <w:lang w:val="EN-US" w:fareast="EN-US" w:bidi="AR-SA" />
      </w:rPr>
    </w:style>
    <w:style w:type="paragraph" w:styleId="Heading1">
      <w:name w:val="heading 1" />
      <wx:uiName wx:val="Heading 1" />
      <w:basedOn w:val="Normal" />
      <w:next w:val="Normal" />
      <w:rsid w:val="00D93B94" />
      <w:pPr>
        <w:pStyle w:val="Heading1" />
        <w:keepNext />
        <w:spacing w:before="240" w:after="60" />
        <w:outlineLvl w:val="0" />
      </w:pPr>
      <w:rPr>
        <w:rFonts w:ascii="Arial" w:h-ansi="Arial" w:cs="Arial" />
        <wx:font wx:val="Arial" />
        <w:b />
        <w:b-cs />
        <w:kern w:val="32" />
        <w:sz w:val="32" />
        <w:sz-cs w:val="32" />
      </w:rPr>
    </w:style>
    <w:style w:type="character" w:default="on" w:styleId="DefaultParagraphFont">
      <w:name w:val="Default Paragraph Font" />
      <w:semiHidden />
    </w:style>
    <w:style w:type="table" w:default="on" w:styleId="TableNormal">
      <w:name w:val="Normal Table" />
      <wx:uiName wx:val="Table Normal" />
      <w:semiHidden />
      <w:rPr>
        <wx:font wx:val="Times New Roman" />
      </w:rPr>
      <w:tblPr>
        <w:tblInd w:w="0" w:type="dxa" />
        <w:tblCellMar>
          <w:top w:w="0" w:type="dxa" />
          <w:left w:w="108" w:type="dxa" />
          <w:bottom w:w="0" w:type="dxa" />
          <w:right w:w="108" w:type="dxa" />
        </w:tblCellMar>
      </w:tblPr>
    </w:style>
    <w:style w:type="list" w:default="on" w:styleId="NoList">
      <w:name w:val="No List" />
      <w:semiHidden />
    </w:style>
  </w:styles>
  <w:docPr>
    <w:view w:val="print" />
    <w:zoom w:percent="100" />
    <w:doNotEmbedSystemFonts />
    <w:proofState w:spelling="clean" w:grammar="clean" />
    <w:attachedTemplate w:val="" />
    <w:defaultTabStop w:val="720" />
    <w:punctuationKerning />
    <w:characterSpacingControl w:val="DontCompress" />
    <w:optimizeForBrowser />
    <w:validateAgainstSchema />
    <w:saveInvalidXML w:val="off" />
    <w:ignoreMixedContent w:val="off" />
    <w:alwaysShowPlaceholderText w:val="off" />
    <w:compat>
      <w:breakWrappedTables />
      <w:snapToGridInCell />
      <w:wrapTextWithPunct />
      <w:useAsianBreakRules />
      <w:dontGrowAutofit />
    </w:compat>
  </w:docPr>
  <w:body>
    <wx:sect>
      <w:p>
        <w:r>
          <w:t>This is the first paragraph</w:t>
        </w:r>
      </w:p>
      <wx:sub-section>
        <w:p>
          <w:pPr>
            <w:pStyle w:val="Heading1" />
          </w:pPr>
          <w:r>
            <w:t>This is a heading</w:t>
          </w:r>
        </w:p>
        <w:sectPr>
          <w:pgSz w:w="12240" w:h="15840" />
          <w:pgMar w:top="1440"
		   w:right="1800"
		   w:bottom="1440"
		   w:left="1800"
		   w:header="720"
		   w:footer="720"
		   w:gutter="0" />
          <w:cols w:space="720" />
          <w:docGrid w:line-pitch="360" />
        </w:sectPr>
      </wx:sub-section>
    </wx:sect>
  </w:body>
</w:wordDocument>

If we want to export some complex data to excel, we can create the xml manually, apply every style we like we want