In my case, I submitted scanned copies of
1), Job offer letter, 2) Employment Records from all jobs, 3), Degree certificates 4), Employment letter from present employer, 5), Medical certificate, 6), Police certificates 7), Marriage Certificate, 8), Passports 9), Bank statement (For CEC you dont need, just a letter mentioning that you have a job offer / you are applying under CEC(
For spouse Passports, employment records, police certificate, Educational certificates, Medical
Kids: Passports, Birth certificate, Medical