In order to upload your contacts to your MailBlue account, you need to save the file containing your contact information as a CSV file first. This ensures that the contact details are saved as plain text, without formatting and formulas.
Good to know: You can recognise a CSV file by the '.csv' extension. For example, a standard Excel file is saved as '.xlsx'.
Click here to save your spreadsheet as a CSV file.
Click here to learn more about importing contacts using a CSV file.
Click here if you receive an error message while importing your contacts.