How to recover data from iTunes backup?

Every Apple users should use iTunes to back up and transfer data. When we factory reset iPhone, we can restore all the data from iTunes to phone by one-click. We rely on iTunes to back up our private data and transfer data between different devices. To recover data from iPhone, we should know how to backup our data, what can iTunes backup and how to restore from iTunes backup.
What dos iTunes backup?
The iTunes can back up nearly all of your data and settings on iPhone.
Pictures: all photos taken by camera, screen shots, pictures you saved, wallpapers, and pictures on other apps.
Media files: including all your videos in camera, movies, musics, and other voice and videos.
Messages: messages, voice messages.
Contacts and call history: all your contacts and recently history call on your iPhone.
App Data: including all the data on your apps, the messages, photos, voice messages; all the app settings.
Settings of your iPhone: all the settings for your iPhone
Notes, memo, safari history, calendars.
How to back up data to iTunes?
Open iTunes on your computer and then connect your iPhone with computer.
Click the phone icon in the software to come to the the backup page.
On the right, click “Back up Now” to start the backup.
After the backup process ends, you can check your backup in iTunes Preferences>Devices. You can see the name of your device with the backup time.
The iTunes backup is stored on your C drive by default. Therefore, you should not delete it from your computer, and if you prefer, you can copy it to your external hard drive to prevent possible data loss on your computer. Also, you can use iCloud backup to add security of your data.

How to recover data from iTunes backup?
First, you can restore directly from iTunes to iPhone
If you want to restore all your data from backup to iPhone and do not mind the backup to replace all your data on iPhone, you can choose to restore your data in iTunes. This is like to restore your iPhone to a former backup so that all the existing data will be removed and replaced by the backup data.
You can click “Restore iPhone” in iTunes to restore your iPhone.
Second, you can extract data from iTunes backup with data recovery software.
If you do not need to restore all your data in backup, you can choose to extract data from your iTunes backup. In this way, you need an iPhone recovery software and the computer which stores your iTunes backup.
Download and run H Data iPhone recovery software on your computer which stores your iTunes backup.
Click “View and Restore files from iTunes backups”. You will see the latest iTunes backups list on the software. If not, you can click to Refresh, or you can click “Browse For iTunes Backups” button on the software to choose the backup.
Click “SCAN” button to scan the iTunes backup.
After scan, you can see all types of data in your iTunes backup. Click each type to preview them.
Tick the data you need to recover and click “Export Selected Records”. You can find these recovered data on your computer. Then you are free to transfer the recovered data.