Each time that you send a new message in Outlook, the emails that you type in To/Cc fields, are automatically inserted into the AutoComplete list, so in the next time that you type an email address, Outlook automatically completes the right email address for you.
The AutoComplete file of Outlook is stored under [Your Profile]\Application Data\Microsoft\Outlook , and it always saved as the profile name of Outlook with .NK2 extension.
This utility reads the AutoComplete file of Outlook (with .NK2 extension), displays all email records stored in it, and allows you to easily export these records into text/html/xml file.
NK2View doesn’t require any installation process or additional DLL files. Just copy the executable file (nk2view.exe) to any folder you like, and run it.
After your run it, NK2View utility displays the AutoComplete list of the default Outlook profile. If you want to view the AutoComplete list of other profiles, simply use the ‘Open .NK2 File’ option.
Add AutoComplete items from your address book
Starting from version 1.15, NK2View allows you to add new AutoComplete items directly from your address book. In order to use this feature, close your Outlook, choose the “Add Items From Address Book” from the File menu, and then select the items that you want to add.
Before you add a new AutoComplete item, you should always backup your .NK2 file, so if something goes wrong, you’ll be able to restore the original AutoComplete list. Also, while you use the add option, Outlook application must be closed.
Download NK2View from Here