Convert cdt to rgbo

What is the difference between .cdt and .rgbo?

Name: CorelDRAW templates files (7-X3,X4 versions); Raw red, green, blue, and opacity samples

Description: 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.; Format for representing colors in the three primary colors (red, green and blue), each of which has 255 gradations. In contrast to the standard RGB, it allows you to change the transparency of the entire image using the opacity parameter.