Conversion to JAR or Spanish license

[spm]

Does anyone know what it would take to convert a Canadian ATPL to a JAR ATPL? Do you have to do a flight test? How many writtens? And aproximately how much would it cost?

Also wondering if Spain has it's own license or do they only accept the JAR license. And if they do have their own license, what is the conversion process to it?

Thanks for everything,