To import translations of 'content', i.e. the ecommerce description of a Product (but pretty much any other information, given the field is ready for multiple languages) you can do this:

1. Create or import your products in your 'core' language, for example by using a CSV or XLSX file as you would do normally.
   A highly simplified (but working one) looks like this:

   id	name	description_ecommerce
   	my english product name	my <b>english</b> <u>html</u> ecommerce description

   Once you have your products in place,
   
   
2. Enable the Developer mode (debug mode): https://www.fcc.gov/general/opening-csv-file-excel (all this is yet another reason why you may consider downloading a PO file and using Poedit)
   
   
3. Once the CSV is correctly opened, you will find seven columns, where column E ('src') and F ('value') are the most important. E holds the original value, F holds the translated value (or is empty, in case no translation has been set yet):
   
   Go ahead and add your translations to the file, then save it as a CSV (comma(!)-separated)
   
   
4. Finally, go back to Odoo (close the 'Export Complete' wizard if you haven't already 🤡), navigate to Settings -> Translations -> Import/Export --> Import Translations:
5. • Language Name: [the name of the language] (i.e. German)
   • Code: [the Locale Code of the language] (i.e. de_DE) - see Settings -> Translations -> Languages for the correct Locale Code
   • File: well, your CSV file
   • Overwrite Existing Terms: Active by default but depends on your needs (hover the question mark for details on it)
     and hit Import:
     

Once done, you can verify the result in the Product's form:

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