Which is more prefered to be called, "XSL file" or "XSLT file"?

What should I call my file containing XSL code (X开发者_如何学编程SLT code?),

which one sounds more sensible/meaningful.

I know the abbreviation of both of them. But don't know which one to use and where ..

I just now came across these words in w3schools.com

It started with XSL and ended up with XSLT, XPath, and XSL-FO.

and also saw written "XSL Source code", So what about .. Alejandro's comments .. ?

Now my question reduces to yet more simple version..

Can we call XSLT code as XSL code too? or is it deprecated?

To be nitpicker, I believe XSL is the language and XSLT is a transformation (a piece of code that is written in XSL to transform one XML to another).

So when you're talking of particular pieces of code I think XSLT is more appropriate (just XSLT not XSLT codes), like apha XSLT or so. But when you are talking about language, it should be XSL e.g. XSL skills, XSL code.

This is not only a matter of opinion: just look and see how many questions are in the xslt tag (2299) and how many are in xsl (753) -- the result is clear, isn't it? :)

Related to this in 2010 I proposed that the xsl tag be considered a synonim for the xslt tag. This proposal was voted and approved.

From http://www.w3.org/TR/xslt#section-Introduction

A transformation expressed in XSLT is called a stylesheet

From http://www.w3.org/TR/xslt20/#what-is-xslt

[Definition: A transformation in the XSLT language is expressed in the form of a stylesheet, whose syntax is well-formed XML [XML 1.0] conforming to the Namespaces in XML Recommendation [Namespaces in XML 1.0].]

Leaving aside the formality of the specification, you can call it what you will. With respect to the components of the stylesheet (or transformation): for XSLT 1.0 they are instructions and its contents are templates, for XSLT 2.0 they are declarations and instructions and its contents are sequence constructors

There is no appreciable difference. I use them interchangeably, and so do most people.

Really, does it matter? I'm all for correct terminology, because it usually matters in IT, but in this case you really won't confuse anyone whichever one you use.