This lexicon is part of the collection of the Wikimedia Dumps which was retrieved as an XML file from http://dumps.wikimedia.org/mtwiktionary/20121105/ on November 5, 2012. In the Wikimedia dump, it is accompanied by a text file mtwiktionary-20121105-pages-articles-multistream-index.txt which lists all the wiki pages contained in the XML file. Both files are contained in the zip file downloadable from META-SHARE.
These files come from an automatically generated dump file of all pages within the Maltese Wiktionary wiki. The pages therein consist of manually constructed pages for articles and (semi-) automatically generated pages for the meta-content. Manual construction of the article pages allows for not sticking strictly to the agreed schema for entries in the Wiktionary.
In view of this mix of article pages, languages, meta-pages and other information, this resource is rather unreliable.