The only cdr to cdl conversion we know of, would be using of CorelDRAW graphics assets (.cdr) for making new graphics using SignLab software (.cdl files). Since SignLab supports CorelDRAw formats just fine, it's the obvious and perhaps also only choice how to achieve this. There are not many sources about this on the Internet, so if you are in need with some particular issue, it would be best to contact either SignLab support or to reach out to the online community.
Updated: July 17, 2023