CDT File Extension

CorelDRAW Image Template

File Type cdt
Developer Corel
Popularity
4.4 (40 votes)
Application CorelDraw Graphics Suite
Category Graphics Files
Format Binary

What is a CDT file?

The CDT file extension is linked to CorelDRAW Image Template and belongs to the Graphics Files category, which includes 556 files.

The CorelDRAW Image Template (CDT) was created by Corel, a company that developed file format and produced 27 programs for their use.

CDT file support extends to various operating systems, including Windows, Mac OS and Linux. If you need to open a CDT file, you can use one of 3 programs, such as CorelDraw Graphics Suite, Corel Presentations and Inkscape.

Windows

Mac OS

Inkscape

Linux

Inkscape

How to open a CDT file?

If you’re having difficulty opening a CDT file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

When it comes to opening and working with CDT files, CorelDraw Graphics Suite, Corel Presentations and Inkscape are the top choices for users. If you need the newest version of CorelDraw Graphics Suite, just access the Corel website. From there you can download the installer compatible with all systems.

When you finish installing CorelDraw Graphics Suite, the system will automatically launch CDT files with it.

Set CorelDraw Graphics Suite as the default CDT application

Changing Default Programs in Windows

Right-click your CDT file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
From the options listed in the pop-up window, specifically choose CorelDraw Graphics Suite as the application to handle your CDT file;
Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.

Change the default app that opens a file on Mac

Right-click or use Control + Left-click on the desired CDT file to open a menu where you can choose from multiple actions;
Select "Open in application" and click "Other";
At the bottom of the window, you will see the "Enable" menu. It is already set to the default option, "Recommended Programs";
Within this menu, select "All Programs" and then search for CorelDraw Graphics Suite. Check the box next to "Always open in app" to make it the default program.

Troubleshooting guide for CDT file complications

When facing challenges with CDT files, simple adjustments in your software can often solve the problem. Find helpful troubleshooting guidance below.

What can lead to sudden CorelDraw Graphics Suite crashes?

CorelDraw Graphics Suite crashes can occur due to outdated software versions. To mitigate this, install the latest updates for Corel products.

Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.

What is the recommended approach to repair a damaged CDT file?

Open the damaged CDT file with a recovery program, and then select the "Repair" menu item to start the repair process. Then wait for the recovery process to complete, which allows you to automatically repair corrupted graphics files.

What are the telltale signs of a corrupt CDT file?

Common indications of damaged CDT graphics files are:

Unexplained increase in CDT file size;
File hangs or crashes in CorelDraw Graphics Suite or other programs;
The file does not open or opens with errors;
While working with the file, error messages appear;
Editing the archive in CorelDraw Graphics Suite results in slow or unresponsive behavior;

How to edit a CDT file?

To edit CDT files, it is essential to install software that supports not only viewing but also editing the graphics files. Online CDT editors provide limited functionality compared to full-featured software for CorelDRAW Image Template.

Best CDT editors in 2026

After analyzing the criteria, we have created a list of CDT editors available for use.

CDT Editor Software	Developer	Platforms	Overall Rating
CorelDraw Graphics Suite	Corel	Windows	4.1 out of 5 (33 reviews)

Convert to and from CDT

If handling a CDT file is problematic, consider converting it to alternative formats such as AI, CDR, P or other supported types.

Keep in mind that converting a CDT file may introduce some limitations, but the original format can often be restored.