Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.
The World-Check Data File is available in XML and CSV formats and includes compressed versions and security checksums. It is also available in the Dynamic Download and Customized Data File formats.
source of information
World-Check Premium and Standard file format
Error in World check file download
Question about the Alias of Sanction Party in the WorldCheckData
How to load World Check Standard Data from either CSV or XML? Much Tried with .CSV over Oracle DB
What are the IP addresses or ranges from WorldCheck URL for FTP site? What is the IP address for the FTP site?