- android.permission.READ_CONTACTS
- android.permission.WRITE_CONTACTS
- android.permission.WRITE_EXTERNAL_STORAGE
- android.permission.READ_EXTERNAL_STORAGE
- android.permission.INTERNET
- android.permission.ACCESS_NETWORK_STATE
- android.permission.WAKE_LOCK
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Contacts Backup and Restore To Excel XLSX, CSV, PDF, VCF.