Why is the file suffix of XML Schemas .xsd and not .xsd.xml or evenbette

["Costello, Roger L." <costello@mitre.org>]

Hi Folks,

An XML Schema document is an XML document, so why isn't the file suffix of XML Schema documents .xsd.xml? 

Example: Bookstore.xsd.xml

To take it a step further, an XML document is a text document, so why isn't the file suffix of an XML document .xml.txt? Thus an XML Schema document would have the file suffix .xsd.xml.txt to indicate that the document is (1) an XML Schema document, which is (2) an XML document, which is (3) a text document.

Likewise, why isn't the file suffix of an XSLT document .xsl.xml.txt?

It seems like that would have the advantage of showing with great clarity of type of file it is. Yes?

/Roger