If your CSV or Excel already contains translations, just add next to the name of the field “: ” + “language extension“.
For example, for a product description in English, Spanish and Chinese, you could have:
| Description:en | Description:es | Description:zh |
| List of descriptions in English. | List of descriptions in Spanish. | List of descriptions in Chinese. |
For a full list of language extensions, see this link.
Translations can be used also for other attributes such as images (for a different image depending on the language) or numbers (for example, for a different unit or price depending on the language).