public function santitizeFileNames($file)
    {
        $path           = pathinfo($file['name']);
        $new_filename   = preg_replace('/.' . $path['extension'] . '$/', '', $file['name']);
        $file['name']   = $this->localLetterSanitize(sanitize_title($new_filename)) . '.' . $path['extension'];
        return $file;
    }