Inactivate Master Data with CSV

Hi SAP Experts,

I have a requirement where in I need to inactivate Product Category Master Data in my system, I can do this task manually by editing each product Category and checking the Inactive button bt there are a lot of product categories to be inactivated.When I tried to achieve this using CSV import, I found that there is no field called INACTIVE which could be set to TRUE. If anyone has any solution to inactivate multiple Product catogories in one shot , please help.

regards,

Vishal