You can import contacts to Outlook 2010 from other email providers using the Outlook Import wizard.
These instructions assume that you have already exported the contacts from the other application, such as a Web client, Excel spreadsheet, or database application.
NOTE For information on exporting contacts, see Export contacts.
Click the File tab.
Click Import from another program or file, and then click Next.
Under Select the file type to import, click the file type of file you want to import, and then click Next.
The most common is Comma Separated Values (Windows), also known as a CSV file. If you are importing contacts that were exported from Outlook to an Outlook Data File (.pst), click Outlook Data File (.pst).
Under File to import, click Browse, select the file that you want to import, and then click OK.
In the Import a File dialog box, under Options, click one of the following:
Replace duplicates with items imported If an Outlook contact already exists, it is replaced by the information that you are importing.
Allow duplicates to be created If an Outlook contact exists, the imported contact is created as a second contact.
Do not import duplicate items If an Outlook contact exists, the information for the imported contact is not imported.
In the Import a File dialog box, under Select destination folder, click a folder for the imported contacts. This usually is the Contacts folder unless you have multiple accounts, or have created multiple contact folders for an account.