I'd like to demo cfreport using a demo .cfr file...would there be a repository for example code in CF?
What's in a .cfr, is it like a css file?
you need to download coldfusion report builder then connect rds server and create cfr file
A .cfr file is a report definition file. It is nothing like a .css file.
I am not aware of any demo or example report files available from Adobe, but you can easily create your own. The report builder has a Windows Help file for documentation and it includes instructions for creating reports.