.XBT file extension

This is the basic program to work with .XBT extension

Notebook Interactive Viewer

Notebook Interactive Viewer Legacy Notebook Template

The viewer allows you to exchange Notebook files with any of your colleagues, even if they don't have access to the full version of Notebook software. You can also view your content created in Notebook software on any computer and present the material using any brand of interactive whiteboard... (more)

The program works with the following extensions: xbk, nbk, xbt and notebook

.XBT extension is also supported by the following program:

SMART Notebook Software

SMART Notebook Software Legacy Notebook Template

Create interactive lessons using graphics, text, tables, shapes, and animations.