We have found one software suitable in our database for this conversion.
des to cdr conversion most likely represents export of 2D graphics content between Corel Designer and CorelDRAW software, something that is certainly doable with the tools provided by CorelDRAW suite itself.
Unfortunately not many alternatives support DES format, which means the options how to otherwise achieve this export will be limited as well.
DES
Files with des extension can be in most cases encountered as technical drawings made using one of the version of Micrografx/Corel Designer.
CDR
Files with cdr file extension are graphics files saved in a unique, proprietary format from CorelDRAW. It is used for artworks, rich documents, or even simple logos.