cdr is a graphics and text saving format for vector files. It is a CorelDraw-specific file storage format. Therefore, it can generally be opened with CorelDraw software. Adobe Illustrator software can also open files in this format, but it is easy to cause deletions.

CorelDraw is generally used for the drawing and typesetting of vector graphics, such as trademarks, album typesetting, manual vector drawing and color separation output, and many other fields.