The Total Import PRO supports some multi language fields.
The way to do this is to select the languages you wish to import during Step 2. Each language will then be available during the field mapping process of Step 4.
When mapping your fields, you would put any spanish content, like 'name_spanish' in the Spanish name field, and 'name_english' in the English flag field.
Similarly your Spanish description goes in the Spanish description field, and your English description in the English field.
Once mapped and imported the data will appear under the correct language tab in your Catalog -> Product Section.
We always recommend you always import for your default OpenCart language (usually English) even if you do not intend to use it. Sometimes products imported only for 2nd or 3rd languages will not appear in the admin panel if they do not exist for the default language.