Can any one tell me what is the best way to migrate Magento1 to Magento2 full data.
It will very thankful in advance for help .
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You can migrate all the data from Magento 1 to Magento 2 with the help of the data migration tool provided by Magento itself. Below is the link for step by step data migration official documentation.
Or you can choose any third party paid service to do it for you.