如何将.xml文件转换为具有相同XML文件结构的.trg文件

Question

我在PowerShell脚本中有一个XML代码。代码执行得很好，我在正确的myTest.xml输出文件中得到了XML结构。我需要将这个myTest.xml输出文件转换为具有output.trg文件中相同XML结构的.trg（例如output.trg）文件。如何做到这一点？

$xmlsettings = New-Object System.Xml.XmlWriterSettings
$xmlsettings.Indent = $true
$xmlsettings.IndentChars = "    "

$XmlWriter = [System.XML.XmlWriter]::Create("C:\myTest.xml", $xmlsettings) 

$xmlWriter.WriteStartDocument()
$xmlWriter.WriteProcessingInstruction("xml-stylesheet", "type='text/xsl' href='style.xsl'")

$xmlWriter.WriteStartElement("Root") 
    $xmlWriter.WriteElementString("Test1","1")
    $xmlWriter.WriteElementString("Test2","2")
    $xmlWriter.WriteElementString("Test3","3")      
$xmlWriter.WriteEndElement() 

$xmlWriter.WriteEndDocument()
$xmlWriter.Flush()
$xmlWriter.Close()

预期的输出文件（output.trg）：

<Root>
<Test1>1</Test1>
<Test2>2</Test2>
<Test3>3</Test3>
</Root>