Note: All following steps are to be completed from within Microsoft Outlook.
1) Click File > Options > Advanced.
2) In the Export section, click Export
3) In the Import and Export Wizard, choose Export to a file, and then click Next.
4) Under Create a file of type, click the type of export you want:
Pick Outlook Data File (.pst) if you're going to sue these items in Outlook on another computer.
Pick Comma Separated Values if you're going to use these items in almost any other program.
5) Click Next.
6) Under Select the folder from, select the contact folder you want to export, and then click Next. 
NOTE: Unless you're exporting to an Outlook Data File (.pst), you can export only one folder at a time.
7) Under Save exported file as, click Browse, choose the folder where you want the file saved and type a name in the File name box.
8) Click OK, and then click Next.
If you're exporting to a .csv file, you have the option to map fields for your contacts.
If you're exporting to an Outlook.pst file, you have the option to set a password.
9) Click Finish. When the Import and Export Progress box disappears, your export is complete.
