PEAT is for the demo application
EASDEMO is for the example application
PFC is for the main framework, primarily needed if you use the PFC security service.
The *.db files are the original SQL Anywhere database files.
The *17.db files are the same databases migrated to version 17 of SQL Anywhere.
The *sql_server.bak files are the same databases migrated to SQL Server 2022.
The individual files can be downloaded directly from the Releases link.