This is a vector imaging format used in the CorelDRAW editor. It has a template that can be applied for other designs, including styles, grid parameters, page layout and other parameters. The CDT template allows for the creation of several images in one style without changing the settings in manual mode.
The YUV file type is primarily associated with Color Space Pixel Format. (CCIR 601 4:1:1) Bitmap image (Abekas YUV SECAM or PAL file CCIR 601 1:1:1 file)