you can export them to a csv file or to a PDF and the limitation goes way up in the number of records, can't recall exact numbers but at least 5K
second one is hard to do since the reports cannot be customized within CAR, basically what you see is what you get on the reports.
you can use the search for extension or user within car and then export the data
you might need to delete some info from the csv if you like or modify it, if it's going to be used a lot maybe it would be a good idea to consider a 3rd party billing server to provide enhanced reports
HTH
javalenc
if this helps, please rate
HTH
java
if this helps, please rate