The decte.xml file begins with the following prolog / XML declaration (see for example the relevant pages at W3C.org, w3resource.com, w3schools.com):
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
- The version specification is standard and requires no comment.
- The encoding specification indicates that the version of the current Unicode standard that allows for 1-byte representation of universal 7-bit ASCII is used; see the definition of UTF-8 at unicode.org.
- The 'standalone' specification makes explicit that the document refers to an external DTD.