One management tool for all smartphones to transfer files between PC & iOS/Android devices.
When you sync your iDevice with iTunes, you are able to restore photos, SMS, contacts, calendars, notes, etc from iTunes backup to your device it you have a need, but you have to restore the whole one and give up existing data on your device. That's to say, your current phone data would be erased. Also, you can't preview or selectively recover part of the data.
However, you can manage, preview your iTunes backup, and restore it selectively just need an iTunes backup extractor like - Syncios Data Recovery.
Note: please make sure iTunes has been installed on your computer for running Syncios correctly, but you do not have to operate it.
In fact, the program provides 3 recovery mode: directly recover from iOS devices and restore from iTunes backup, or iCloud backup. You can simply click on Recover from iTunes Backup File.
If you have synced different iOS devices with iTunes before, more than one backup files will show up in the window as screenshot showed below. Just choose the one for your iPhone and click Start Scan.
The scaning process will take you only a few seconds. When it stops, you can preview all content in detail. Tick the items you want while previewing, and save them to your computer by clicking on the "Recover" button.
Simply download and have a try.