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CTB File - What is a .ctb file and how do I open it?
Learn about .CTB files and view a list of programs that open them.
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Overview
What is a CTB file? 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.
More Information 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.
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DeveloperChitubox
Popularity4.0 | 2 Votes
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.CTB File Extension
3 file types use the .ctb file extension.
AutoCAD Color-Based Plot Style File
| Developer | Autodesk |
| Popularity |
3.7 | 22 Votes |
What is a CTB file?
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.
More Information
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.
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Programs that open or reference CTB files
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Autodesk AutoCAD 2025
Free Trial
Category: Settings Files
Updated: January 6, 2010
Cherrytree SQLite Document
| Developer | giuspen |
| Popularity |
3.0 | 7 Votes |
A CTB file may also be a document created by Cherrytree, a note-taking application. It stores document data in SQLite format, which may include text, tables, images, objects, and document settings. CTB files protected with a password are saved as .CTX files.
More Information
Users typically save Cherrytree documents as CTB or CTX files. However, they may also save documents in XML format as .CTD files. Password-protected CTD files are saved as .CTZ files. CTD and CTZ files are useful for saving documents that are smaller in size than CTB and CTX files.
NOTE: Cherrytree is developed by giuspen, a portmanteau of Giuseppe Penone.
Programs that open CTB files
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giuspen Cherrytree
Free
Linux
giuspen Cherrytree
Free
Category: Data Files
Updated: April 23, 2018
Chitubox Sliced 3D Model
| Developer | Chitubox |
| Popularity |
4.0 | 2 Votes |
A CTB file may also be a sliced 3D model created by Chitubox, a program used to prepare 3D models for 3D printing. Using a CTB file, various 3D printers can print the model the file describes.
More Information
CTB file open in Chitubox
Chitubox allows 3D printer users to import, arrange, edit, and slice 3D models for printing. Slicing a model converts that model into a set of instructions that a 3D printer uses to print the model (by printing "slices" of the model atop or alongside each other, until the whole model is printed).
Chitubox can save sliced models in several formats, including the CTB format. Several 3D printers with which Chitubox is packaged (such as the Elegoo Mars 2 Pro) can print only models saved in the CTB format. Others can print only models saved in Chitubox's .CBDDLP format.
NOTE: CTB files created by different versions of Chitubox are saved in slightly different file formats. Thus, a 3D printer may be able to print some CTB files but not others.
How to open a CTB file
You can open a CTB file with Chitubox Basic (available for free) or Chitubox Pro (available as a free trial). To do so:
After opening your CTB file in Chitubox, you can transfer the file to a connected 3D printer, edit the model(s) the file contains, or convert the file to another sliced 3D model format.
How to convert a CTB file
To convert a CTB file to another sliced 3D model format:
You'll then be able to save your CTB file in any of the slicing formats listed here .
Programs that open CTB files
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Chitubox Basic
Free
Chitubox Pro
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Mac
Chitubox Basic
Free
Chitubox Pro
Free Trial
Linux
Chitubox Basic
Free
Chitubox Pro
Free Trial
Category: CAD Files
Updated: November 27, 2023