Import modification

I have to import referring to the product and category code.
The category code (I read on the documentation) can be set as custom field (available in the "business edition").
But, after that, I have to modify the import files.
Is it possible to know the list of the files involved in the import operation ?
Thanks

Hi,

The import processing is handled by only one file:
administrator/components/com_hikashop/helpers/import.php

Thanks for info.