I would like to know why AbanteCart uses xml files for language translations, what are the advantages? I'm comparing to OpenCart that use simple php files (list of vars with the translated strings).

From the point of view of a translator, that is bad, there are more text susceptible to type errors, so I would like to know the advantages of xml files.

In time, the "Extenstions and Add-Ons" section is misspelled, right: "Extensions and Add-Ons"