If Archive Events Enabled is selected on the System Configuration Events tab, a separate compressed CSV file is produced for each day’s event data.
Daily event files are stored for one year and are accessible through the Event Log Archives, which lists the date-stamped files in chronological order. Through the log, you can click on and open (or save to another location) any listed event log file. Open the Event Log Archives by clicking the Archives button 
in the header of an Event log.
If Archive Events Enabled is not selected, no event archives are generated from that point forward.
