If your AutoCAD installation is missing this file, or if you need to deploy it across a new workstation, this comprehensive guide will provide download instructions, installation steps, and troubleshooting tips. What is a Monochrome CTB File?

A is an AutoCAD file that maps screen colors to output settings (color, lineweight, screening) during plotting.

Click the icon (the small wrench/plotter button next to the dropdown). Switch to the Form View tab.