Have you ever deleted some important iPhone contacts by accident? Do you want to recover them? Everytime we connect iPhone to computer, iTunes would back up iPhone file on computer. Then once we lost iPhone data, we can use iPhone data recovery to restore iPhone file. Now I'll guide you how to recover contacts from iPhone backup on computer with Coolmuster Data Recovery for iPhone iPad iPod.

Don't sync your iPhone to the computer with iTunes, because the backup file will be updated if you connect your iPhone to computer and sync it with iTunes. It will just backup the exiting files on your iPhone.

Step 1: Start the app
Launch the app on computer, then app would retrive all the devices that you have backuped on the computer before, and select your previous iPhone backup files from the list. Next, click "Start Scan", the problem will scan and display all the contents contained in the backup files.

Step 2: Recover contacts from iTunes backup
Go to "Contacts", then select and check those contacts you want extract from the right. At last, click "Recover" to start the extract. Then, there will be a dialog ask you to choose save address, you just need to choose where you want.

That's all!
Resource:
http://www.coolmuster.com/ios-recovery/recover-contacts-text-messages-form-iphone-sim-card.html