This article explains what CR2 files are, what files you need to install to open them, and how to save them in a different file format, such as JPG, DNG, PNG, and others.

A file with the CR2 file extension is a Canon Raw version 2 image file created by a Canon digital camera. The format is based on the TIFF file specification and stores uncompressed, high-quality image data.

The 3D modeling program Poser also uses CR2 files. However, instead of storing photographs, Poser CR2 files are character rigging files used to hold information about human details such as joints and bones, and where and how much they bend.

CR2 images can be opened with free programs such as IrfanView and UFRaw. Some versions of Windows allow you to view CR2 files without additional applications (for example, in a folder view), but only if the Microsoft Camera Codec Pack or Canon RAW Codec Software is installed.