This is a format for editing, storing, and transmitting images with metadata for scientific purposes. The main application is astronomy. The main emphasis is on the metadata, which contain information about spatial and photometric calibrations. FTS is often used for storing data without including the actual associated images. It supports the storage of databases, matrices, etc.
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.