Question:

The attributes are duplicated 3 times each time export


Answer:

In this case, could you please create a new Bss_BssProductAttributesCustomize module to customize function export() of file: app/code/Bss/ProductAttributesImportExport/Model/Export/ProductAttributes.php


For more information about product, please refer Import/Export Product Attributes for Magento 2 page.

If you need any further assistance, please feel free to contact us.

Please visit our site for more useful Magento 2 Extensions: https://bsscommerce.com/magento-2-extensions.html