You will generate a large number of banners, so it is important for you to have file names that allow you to classify them easily.
Customize my file name before exporting
To change the file naming scheme of your exports, you need to go to the template on which you want to change it.
Go to My templates
Select your template
Go to the template settings tab under the visual
Click on Define a custom naming scheme
Write the naming scheme and use the tags corresponding to the data in your feed.