Hello I just signed in your website.

Hi Mehmed, this product does not have any BIM/CAD files, so first you have to make sure the product you are looking at has the right files to download. The easiest way to find products with the right files is to do a search and then use the 'Formats' filter to tick the relevant file formats. You can search for a particular product or even do a blank search like this: https://www.modlar.com/search and then tick the format on the left hand side. Let me know if you need any more info.