Hi you can follow the steps to convert your NAB file to Outlook
1. Start Groupwise and go to toolbar then click ‘Address Book’.
Now depending on your choice you can selective export address book or entire address book can be exported.
2. In the File menu Click Export by following either of the two options
‘Selected Items’ or ‘Entire Address Book’
3. Set a name for the exported file and click on Save button. This file is saved with .nab file extension.
Now open the spreadsheet to convert this Nab file into CSV file.
Go to Open >> Select all files >> Search NAB file and Click Open
4. Now go to Save as option >> select CSV and click Save
Note: Wrote down the name and path of the file carefully
5. Now Open Outlook to Import this CSV file
6. Go to File Menu >> Click Import & Export >> select import from another program or file >> Click Next
7. Select CSV and then click next by browsing the saved file and then click ok
8. Now select contact folder in Outlook where contacts have to be imported >> click Next and then click Finish.