There are a few ways to get customer data on Shopify:
1) You can use Shopify's built-in Customer List tool to export a list of your customers and their information. To do this, go to Customers > All Customers in your Shopify admin, and then click the Export button at the top of the page.
2) You can also use Shopify's API to retrieve customer information. For more information on how to do this, please see our documentation on the subject:
3) Finally, you can also use third-party apps to help you get customer data. For example, the app DataGrabber lets you export customer information from your Shopify store into a spreadsheet.
One way or another, there are plenty of options for getting customer data from your Shopify store.