This tutorial will show you on how to update attribute sets for products in bulk in Magento.
First, you should open Admin panel of Magento store and navigate to Catalog – > Manage products section:
On the page appeared select products you want the attribute sets to be updated for, Attribute set itself, Actions Update attributes, and click Submit button:
on the appeared page you can update:
Click Save button to apply changes.
Clear Magento cache to check the changes applied.
Feel free to check the detailed video tutorial below: