How to define the office version for generated excel

Migrateduser

<p>The default office version is offce 2003.</p>
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source code

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<div>if (getStringOption("excelRenderOption.officeVersion") == null) {</div>
<div>      return "office2003";</div>
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<div>while  I try to setOfficeVersion("office2007"). It seems not work.</div>
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<div>  EXCELRenderOption options = new EXCELRenderOption();</div>
<div><span style="color:#ff0000;">        options.setOutputFormat("xls");</span></div>
<div><span style="color:#ff0000;">        options.setOfficeVersion("office2007");</span></div>
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