To use an existing locale: - Open `inc/settings.php` with a text editor - Find the `lang` option and set it to the locale you want to use. Example: `$this->lang = 'es_ES.utf8';` ----- To create a new locale (example being "es_ES"): - Copy lang/en_US.utf8.php to a new file (e.g. `lang/es_ES.utf8.php`) - Edit the new file, change "class en_US" to "class es_ES" so it looks like this: ```