- In Mailing lists menu create a new list by clicking the Add mailing list... button.
- Open the newly created list by clicking on its name.
- In the mailing list click the Import button and the import wizzard will appear.
- Select the file to import and its format and click Continue.
- You will be presented with a preview of the first 10 records from your file. In this step you have to assign the columns their respective content (email, name, custom fields, etc.). In case the non-latin characters appear incorrectly you might need to change the character encoding on the top.
- Click the Finish button and wait for the import to complete.
- Once the import has been completed you will be notified about it's progress and the number of records imported.
More information regarding the import or mailing lists can be found in documentation.