FonePaw iOS Transfer (opens new window) can also import Outlook ( 2003/2007/2010 ), Address contacts from your computer to iPhone directly. Vice verse, you can export iPhone contacts to computer and save them as vCard file (s) or CSV file, then sync them with Outlook, Gmail, Hotmail, and Windows Address Book, etc. If you add multiple accounts in your iPhone and find duplicate contacts on your iPhone, this software can help you merge duplicates.
Download the trial version of FonePaw iOS Transfer and have a try..
Launch the program on your computer. Then connect your iPhone to your computer. The program will automatically detect and display the device information for you.
In the left column, click on "Contacts" to bring up the contact management window. Click the "+" button to import contacts to your iPhone..