# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

.CTB File Extension

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AutoCAD Color-Based Plot Style File Icon
File TypeAutoCAD Color-Based Plot Style File
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CategorySettings Files
File Format Description

File used by AutoCAD, a CAD program used for 2D and 3D drawing; contains color-based plot styles, or mappings of colors to layers of objects; used to attach color and display settings to design objects.

CTB files can be replaced by the newer .STB format, which abstracts layer color-based properties to object-based properties. Many companies still use CTB files instead of STB files because of the cost required to train personnel and to upgrade existing CAD designs.

NOTE: CTB files and STB files cannot both be used within the same CAD design. CTB files may be converted to STB files using AutoCAD.

Program(s) that open .CTB files
Updated 1/6/2010