Duplications are identified by a matching e-mail address. To avoid losing your existing data, duplicate entries will not be imported.
IMPORT CONTACTS TO OUTLOOK ONLINE DOWNLOAD
Download the sample CSV file to see an example of the expected data structure for your CSV file. To import contacts from other sources, you can map your data into a supported CSV data structure for import. The currently selected contact will remain selected and in view.
Users can only select a valid csv file to import to start the process of adding new contacts to the address book. A file selection window will pop up, with a *.csv filter. Import Contacts: Navigate to Contacts in Optimum Online E-mail and press the import contacts button located in the footer.