Default File Extension for CorelDRAW Files

The default file extension for CorelDRAW files is .CDR. This article explains what the CDR format is, what types of data it stores, how it functions within the CorelDRAW Graphics Suite, and the various ways you can open or convert it using other graphic design software.

What Is a CDR File?

A file with the .cdr extension is a proprietary vector graphics file format developed by Corel Corporation. It serves as the native project format for CorelDRAW, a popular vector illustration and page layout software.

Unlike raster images (such as JPEG or PNG) that rely on a grid of pixels, CDR files contain mathematical formulas that define shapes, lines, curves, colors, and text. This allows graphics saved in the CDR format to be resized infinitely without any loss of quality or sharpness. In addition to vector components, CDR files can also embed raster images, typography, layers, page layout settings, and color profiles.

Other CorelDRAW File Extensions

While .cdr is the standard format for saving working files, CorelDRAW also uses related extensions for specific tasks:

  • .CDT (CorelDRAW Template): Used for saving template files that maintain pre-set styles, layouts, and design elements for future projects.
  • .CMX (Corel Metafile Exchange): A format designed to share vector and bitmap data between different Corel applications.
  • .DES (Corel DESIGNER): The native extension used by Corel DESIGNER, tailored for technical illustration.

How to Open and View CDR Files

Because .cdr is a proprietary format, it is best opened using native Corel software. However, several alternatives exist if you do not have a CorelDRAW subscription:

  • CorelDRAW Graphics Suite: The primary software for creating, opening, and editing CDR files on both Windows and macOS.
  • Inkscape: A free, open-source vector graphics editor that can open and import most versions of CDR files.
  • Adobe Illustrator: Capable of opening certain versions of CDR files (primarily up to CorelDRAW version 10), though newer CDR versions may not render correctly.
  • Online Converters: Tools like CloudConvert or Zamzar can convert .cdr files to universal formats like PDF, SVG, or EPS for easy viewing in other applications.