ou can export your address book via Google using its takeout service (see Email, above right) using the vCard format. This is an industry standard that you can import into the OS X Contacts app and sync to iOS.
If you’re using Outlook.com or Hotmail, click the grid icon on the banner at the top of the screen and pick People from the menu. Microsoft prefers CSV format (comma separated values). Select the contacts you want to export (or just select nothing to export them all) and pick ‚ Export for Outlook. com and other services‚ from the Manage menu.
From Yahoo, point your browser at mail.yahoo.com and pick the Contacts icon immediately below the Yahoo Mail logo. Check the boxes beside the particular details you want to save, then click the Actions menu, pick Export and choose a format (we’d recommend vCard Single File) before clicking Export Now.
Google packages your Gmail data and tells you when it’s ready to download.
Yahoo offers a range of different formats to choose from when exporting your contacts.