Step 1: Go to the subscriber tab. Click “Add a new group”.
Step 2: Fill in all the fields required. Create your group & friendly name (both should be specific). Then after that, click the “add new group” button below.
Step 3: After clicking it, you’ll be routed to the page where you see all your groups and just click on that “group” that you just created.
Step 4: From there, click the “add subscriber” tab and you have different ways to add subscribers.
Step 5: For the option “from a spreadsheet. Click “start importing” and click “browse” to find your file to import.
Step 6: Once you’re done setting it up. Click “upload and continue”.
Step 7: If you’re already satisfied with your mapping, click on “import” at the bottom left corner and you’re done.