To import your existing subscribers via CSV file, click on Import via CSV file on the Import page.
The CSV file must be formatted in a specific way to be uploaded successfully. Your file must have at least one column whose header is
There are other, optional, columns that you can use:
Subscriber's sign up date (DD/MM/YYYY or DD/MM/YYYY HH:MM)
Subscriber's IP address. SparkLoop uses IP address to determine the location of the subscriber.
If the subscriber you're importing has been referred, provide the referral code or email address of the referrer.
Subscriber's sign up source. E.g: Facebook, Twitter, myblog.com