What is CTB? What Opens a CTB? File Format List from WhatIs.com

File Extension

CTB File Format

AutoCAD Color-dependent Plot Style Table

CTB is a file extension for a color settings file used with AutoDesk AutoCAD software. CTB files contain color-based plot styles, or mappings of colors to layers of objects; used to attach color and display settings to design objects. CTB files have been replaced by STB files, though many companies continue to use CTB files due to their compatibility and familiarity.  CTB files can be be opened by AutoDesk AutoCAD software.


Learn more about .CTB files:

Visit the AutoDesk web page.

Learn more about AutoCAD at ITKnowledgeExchange.com.

This was last updated in September 2010
Editorial Director Margaret Rouse

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