File Extension Library

.CTB File Extension

  • Developer by: Autodesk
  • Category: Settings Files
  • Format: Binary

What are .CTB files and how to open them?

Can't open .CTB file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .CTB file.

What is a .CTB file extension?

.CTB file extension is created by Autodesk. .CTB has been classified as Settings Files. The format of .CTB file is Binary.

.CTB is AutoCAD Color-Based Plot Style 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.

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.

List of all softwares that can open the AutoCAD Color-Based Plot Style File
Autodesk AutoCAD 2018
File Type 2 Cherrytree SQLite Document
Developer by: giuspen Category: Data Files

A CTB file is 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.

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.

List of all softwares that can open the Cherrytree SQLite Document
giuspen Cherrytree
giuspen Cherrytree

How to fix problems with .CTB files

  1. You need to update the application that you normally use to open .CTB files. Only the latest version of the software supports the current .CTB file format
  2. You need to check the .CTB file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)