Sheet to Contacts add-on for Google Sheets integrates your Google Contacts™ with Sheets, allowing you to compose and update contacts from your spreadsheet data.

Free version restrictions:
 * Create/Update 2 contacts at a time
 * Import ony 50 Contacts/Other Contacts to Sheet

Premium Features:
 * Create 1000(Gmail); 2000(Google Workspace) contacts per day (Limit set by Google Quota)
 * Create contacts to specific group
 * Update the contact fields in a click, while spreadsheet contact info are changed/modified/updated
 * Import Contacts to Sheet
 * Import Other Contacts to Sheet

Video help: https://youtu.be/VTtB2F6QMCY

Use cases:
Export email addresses to sheet
Batch update contacts from sheet
Create contact records from sheet
Update contacts from Sheets™
Create personalized contacts from Sheets™
Batch create phone contacts from sheet
Bulk contacts creation from sheet
Manage contact list in sheet
Create new contacts from Sheets™ data
Export contacts to sheet
Update contact fields from sheet
Export contacts for mail merge
Create contacts from sheet rows
Contacts creation tool for Sheets™
Contact creation from sheet rows
Contacts to sheet tool
Import contact addresses to sheet
Create contact templates in sheet
Create custom contacts from sheet
Create contacts from rows in Sheets™
Import contact phone numbers to sheet
Contact organization tool for Sheets™
Manage contacts with sheet
Import contacts to sheet
Bulk create contacts with sheet
Import contacts from sheet
Import contacts into Sheets™
Import phone numbers to sheet
Manage multiple contacts in sheet
Export contact details to sheet
Easy contact export to sheet
Export contacts from sheet to CRM
Create contact groups from sheet data
Organize contacts using sheet
Export contact list from sheet
Automate contact updates in sheet
Create group contacts from sheet
Create contacts when adding rows to sheet
Create contacts from email addresses in sheet
Create contacts from sheet data
Contacts management in sheet
Create contacts directly from sheet data
Export contacts from CRM to sheet
Batch create contacts from sheet
Manage phone numbers with sheet
Manage contact fields in sheet
Bulk contact management tool for sheet
Migrate contact lists to sheet
Contacts Sheets™ integration
Bulk import contacts to sheet
Convert sheet data into contacts
Contact export automation tool
Contact info export to sheet
Migrate contacts to sheet
Export other contacts to sheet
Import phone contacts to sheet
Import contact details from sheet to CRM
Export contact fields to sheet
Populate contact fields from sheet

For more details about quotas visit: https://developers.google.com/apps-script/guides/services/quotas