Step 1:
Download and install iMazing on your Mac or Windows PC.
*If you're on Windows*: Search for `%appdata%` and navigate to Apple > MobileSync > Backup in File Explorer. Your backups will be there.
Now, copy and paste the backup folder to a different location to create a backup of your device's backup. This ensures you have a safe copy in case your edited backup becomes corrupted. Also, keep a copy of the backup folder name, which is the device's UDID, as you'll need it later on.