...
- On the Custom Lists page, click Import at the top Action bar.
- To import a new list, select the Import New List radial button.
- In the Import Custom List dialog, complete the following:
List Name: Enter a name for the custom list. This is a required field. Ensure that you use a unique name for each list. Please save your list in comma separated values (.csv) format. A To download a sample CSV file is available for downloading to your computerby right, do the following:
Right-clicking with your mouse on the sample_customlist_import.csv link below. and clicking "Save link as..." Once the sample.csv file is downloaded, you can open it in your favorite spreadsheet application.
...