What is a JXR file? A JXR file is an image saved in the JPEG XR image format. It likely contains a high-definition, continuous-tone digital photo. The JPEG XR format is an improved version of the JPEG format. Thus, JXR files are similar to, but usually higher quality than, .JPG files.

More Information JXR file open in Microsoft Photos In 2007, Microsoft and the Joint Photographic Experts Group (JPEG) partnered to turn Microsoft's HD Photo (also known as Windows Media Photo) image format into an extension of the JPEG standard. The resulting format was named JPEG extended range, or JPEG XR. The JPEG XR format improves on the standard JPEG format in several ways. Most notably, JXR images can include more accurate colors than JPEGs, making the JXR format better suited for storing high-resolution digital photos. JPEG XR also supports: Higher compression rations than normal JPEG (producing smaller-sized files) Both lossless and lossy compression An alpha channel used to provide transparency