What is XSL or XSLT? XSL stands for Extensible Stylesheet Language. XSLT stands for XSL Transformation. Both XSL and XSLT are used as the file extension for XSL Transformation files. .XSL or .XSLT files are text files that can be opened by Notepad or any text editors. See the sample .XSL file included below.

File Extension: .XSL

MIME Type: application/xml, text/xml

File Content: XSL Transformation

.XSL or .XSLT files are XSL Transformation files, which contains transformation rules in Extensible Stylesheet Language to convert XML files. Here is a sample .XSL file containing some simple transformation rules:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="1.0">
  <xsl:output method="xml" indent="yes"/>
  <xsl:template match="/persons">
    <root>
      <xsl:apply-templates select="person"/>
    </root>
  </xsl:template>
  <xsl:template match="person">
    <name username="{@username}">
      <xsl:value-of select="name" />
    </name>
  </xsl:template>
</xsl:stylesheet>

.XSL or .XSLT file sample: Click sample.xsl to download.

Since .XSL or .XSLT files are in text format, you can use Notepad or any text editor to create or modify them. No special software is needed.

For for information on how to use .XSL or .XSLT files, see links below:

• XSL Transformations (XSLT), by W3C.