在从Excel导出到XML的两个名称空间

我有一个这样的XML文件; “`

<?xml version="1.0" encoding="UTF-8"?> <iaapi:Project xmlns:iaapi="http://www.ibm.com/investigate/api/iaapi" name="IA Quickstart"> <DataRuleDefinitions> <DataRuleDefinition name="CanadaSinMatchesRegex"> <ExecutableRules> <ExecutableRule folder="All" name="CanadaSinMatchesRegex2" excludeDuplicates="false"> <description></description> <LongDescription></LongDescription> <BoundExpression>EDW.CCAS.LCNDWT1.DW.&quot;CCAS_ENT_BRWR_STG&quot;.I_OFFCR_EMP_ID MATCHES_REGEX '^([0-79]\\d{2})([ \\-\\.]?)(\\d{3})\\2(\\d{3})$'</BoundExpression> <OutputDefinition type="FailingRecords"> <OutputColumn name="sin" type="variable" value="sin"/> </OutputDefinition> <Bindings> <Binding var="sin"> <Column name="&quot;EDW.CCAS&quot;.LCNDWT1.DW.CCAS_ENT_BRWR_STG.I_OFFCR_EMP_ID"/> </Binding> </Bindings> </ExecutableRule> </ExecutableRules> </DataRuleDefinition> </DataRuleDefinitions> </iaapi:Project> 

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我没有使用Excel中的导入function将此xml文件转换为excel。 然后当我尝试导出回到XML，我得到以下的XML输出;

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  <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <ns1:Project xmlns:ns1="http://www.ibm.com/investigate/api/iaapi" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="IA Quickstart"> <DataRuleDefinitions> <DataRuleDefinition name="CanadaSinMatchesRegex"> <ExecutableRules> <ExecutableRule folder="All" name="CanadaSinMatchesRegex2" excludeDuplicates="false"> <BoundExpression>EDW.CCAS.LCNDWT1.DW."CCAS_ENT_BRWR_STG".I_OFFCR_EMP_ID MATCHES_REGEX '^([0-79]\\d{2})([ \\-\\.]?)(\\d{3})\\2(\\d{3})$'</BoundExpression> <OutputDefinition type="FailingRecords"> <OutputColumn name="sin" type="variable" value="sin"/> </OutputDefinition> <Bindings> <Binding var="sin"> <Column name="&quot;EDW.CCAS&quot;.LCNDWT1.DW.CCAS_ENT_BRWR_STG.I_OFFCR_EMP_ID"/> </Binding> </Bindings> </ExecutableRule> </ExecutableRules> </DataRuleDefinition> </DataRuleDefinitions> </ns1:Project> 

“`我可以得到帮助理解为什么我们从excel导出后得到两个名称空间？ 非常感谢帮助。 谢谢