You can export all of the contacts on your phone to internal storage, as vCard files. You can then copy this file to a computer or another device that is compatible with this format, such as an address book application.
Open the Contacts application.
Tap the
.Tap Export to internal storage.
Tap the contacts you want to export to internal storage. To export all of the contacts, tap the Select all checkbox in the upper left corner of the screen.
Then tap Export, then OK to confirm.