CTB File Type

- The quick facts

What are CTB files and how to open them

Are you having problems opening a CTB file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CTB file?

CTB files have multiple uses, and AutoCAD Color-Based Plot Style is one of them.

AutoCAD Color-Based Plot Style

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CTB files

Important: Different programs may use files with the CTB file extension for different purposes, so unless you are sure which format your CTB file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 6 different CTB openers which you will find listed below.

Last updated: April 28, 2021

More file formats using the CTB extension

Through our research of CTB files, we know that the following formats exist. However, we have not yet analyzed them in detail, and we would love to hear from you if you have information about either of them.

CherryTree Note (SQLite)

Various apps that use files with this extension

These apps are known to open certain types of CTB files. Remember, different programs may use CTB files for different purposes, so you may need to try out a few of them to be able to open your specific file.