(EXchangeable Image Format) Extensions to image file formats that hold the camera settings used to take the picture. Developed in 1995 by JEIDA for JPEG images, EXIF data was added to TIFF, RAW and other formats later. Most digital cameras support EXIF and save the data in the file headers. However, when an image is edited, the EXIF data may be automatically removed by the software. An EXIF reader is a utility that is used to read, display and save EXIF data from a file.