I know this is a late reply but this will help anyway if you have not made it work yet.
Once you have configured the cdr server IP address and port in your A800 and your PC (cdr server) is up and running the CDR software CDRSRV.exe that comes free in the Quintum disc, the PC will automatically create a new folder where the A800 will dump the CDRs in CSV format. The name of the new folder will be the IP address of your A800, with this format – xxx_xxx_xxx_xxx.
BEWARE: DO NOT OPEN OR DOUBLE-CLICK a CDR file while it is still being written with data because doing so WILL STOP the recording of new call details. The best way to do is copy it before opening it with Excel.