How to import, export, and restore Google Contacts
Let's say you switched phones, and your contacts are gone, and you don't know what to do. Losing all your Google Contacts when you're changing phones can be stressful. Here is how you can import, export, or restore your Contacts.
Import your contacts from a SIM card
If you saved your contacts in your SIM card, you can import them into your Google account connected with your Google Contacts.
Insert your SIM card into your phone.
On your phone, open the [Contacts] application.
At the bottom, tap [Organize] and then [Manage SIM].
Select the list of contacts you wish to import and the account that they should be imported to.
Tap [Import].
Import your contacts from a.VCF file
On your phone , open the [Contacts] app .
At the bottom, tap [Organize] and then [Import from file].
If you have multiple accounts on your device, pick the account where you want to save the contacts.
Find and select the VCF file to import.
Export your contacts
On your phone, open the [Contacts] application.
At the bottom, tap [Fix & manage] and then [Export to file].
Choose one or more accounts to export contacts from.
Tap [Export to .VCF file].
Restore your contacts
On your phone, open the [Google Contacts] application.
Under the [Manage contacts], tap [Restore].
Choose from which contact you want to restore and tap [From account].
After that, you may tap [Restore]
For more information you can refer to here
*Pictures, settings, and paths might differ from those of your phone, but these won't affect the description of this article.