How to Access iTunes Backup Files. Step 1: Choose Extract Data from Backup. Download and install iMyFone D-Port on your computer and then launch it. From the main window, select " Extract Data from Backup". Choose an iTunes backup that contains the data you want to access, and then click "Next" to continue.How do I fix a corrupt iPhone backup?
Read and follow these steps to fix your corrupt iPhone backup. Run Decipher Backup Repair, and select your corrupt iPhone/iPad/iPod backup from the list of iTunes backups. Click "Repair It!" to start the fixing the broken backup. Review the list of issues to your backup then press "Next".