A CDR file is a file format used mainly for vector graphic images and drawings, and it was developed by the Corel Corporation. The CDR file format is recognized by the majority of image editing programs, and it is the default format for Corel Draw Applications. CDR files are vector graphics files that store digital images encoded and compressed to be opened and manipulated by a vector editing software program. CDR files can be opened with CorelDRAW products as well as other Corel applications. If you already have a copy of CorelDRAW installed, you can simply double-click the file or drag it into an open instance of CorelDRAW or compatible Corel product. If you havent yet installed CorelDRAW, you may do so using the download link provided by CorelDRAW. Other programs that can open CDR files include Adobe Illustrator, Adobe Reader, and Corel PaintShop Photo Pro. If you dont have access to CorelDRAW or other compatible programs, there are free programs available that can open CDR files, such as Inkscape and LibreOffice Draw.