Note: The screenshots are taken on ASUS ZenFone5 Android 8. The UI may vary from different devices and different versions of Android. Configuration steps are similar.
Export Contacts
1. Tap the Contacts app > menu icon > Settings > Contacts > Manage contacts
2. Tap Import / Export > Export to storage > Choose a contact source > Export contacts
Import Contacts
1. Tap the Contacts app > menu icon > Settings > Contacts > Manage contacts
2. Tap Import / Export > Import from storage > Select an account to create contacts
