This format contains uncompressed RAW images, and it is used to create photos for archival storage. It has a TIFF structure and is distributed with open source. DNG is also used for the intermediate storage of digital images. It is supported by most camera manufacturers. It was developed by Adobe. It can be used to store multiple images, one of which is used for previews.
CUR is a file - the image of the cursor, sometimes animated, which is used for the mouse pointer in Windows. This may be an arrow (for general use), rotating hourglass (wait), or the symbol I (editing). Users can change or edit the standard cursors. To view and edit files .CUR suitable programs such as Inkscape, Corel VideoStudio.