I’ve recently recorded a couple of videos on how to use the combined US Chess and FIDE Databases that is produced by Bill Buklis at https://www.kingregistration.com/combineddb with SwissSys 11.
The first video shows the process of how to setup the database within SwissSys and download an initial monthly database, https://youtu.be/xOPewaK6NlQ?si=7vStis36sfHPrFDQ
The second video shows the process of how to update the database with a new monthly supplement, https://youtu.be/xDb9c77N1xs?si=JWEAsS8qX_cXoCfm
This process enables TDs/arbiters to quickly ensure they have as much of the required information in their SwissSys file for meeting the US Chess requirements to submit a FIDE-rated event to US Chess for rating.
Hope they are of some use for folks!