In the new version of Reward Points for Magento 2, aheadWorks added a brand-new points import/export tool.
Reward Points Import/Export
Now the extension allows store owners to perform a quick and easy migration from other reward programs or from Magento 1 stores with the help of the new point balance import/export tool.
aheadWorks are providing free lifetime updates and installation as well as a detailed user manual and knowledge base. Also you will receive 90 days of free support, a 45 day money-back guarantee and a personal account manager.