Mailchimp is an all-in-one marketing platform that provides various tools and services to help businesses manage their email marketing campaigns. Mailchimp is known for its user-friendly interface and its ability to help users easily create and send emails to a list of subscribers. Businesses use Mailchimp to keep their audience engaged, disseminate information, and drive sales and other conversions.
That's your Mailchimp dashboard. On the left column click on "Content" and then on "Email Templates"
This is the Templates section of Mailchimp. Simply click on "Create Template."
Click on the "Code your own" tab and then select the "Import zip" option.
Just give a name to your template.
Customize your template by clickin on "Edit Design" or by "Edit Code" options located on the bottom of Mailchimp Editor screen. Save and Exit once ou are done.