> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://faq.bimandco.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How do I add a file to the viewer?

In the fifth step of the object editor setup process, you will find the option to “Manage your models”. You can choose between 3D and 2D files by dragging and dropping them here at this stage. You can drag your .obj files into the viewer and they will appear. This will work even if your .obj files are in a .zip file.

Be aware that our platform will automatically open and display .rfa files in the viewer by default.


![](https://storage.crisp.chat/users/helpdesk/website/eeaa57ab-9bed-46cf-9a45-14ce127caab6/d8587dfe-b647-441f-b077-5e09c38fca2b.png)