How to Save Event Logs
You can save event logs for later reference or for historical data. Event log files can be saved as event files (*.evt), text files (*.txt). or comma-delimited text files (*.txt).
To save event logs
Click Start, and point to Programs.
Point to Administrative Tools, and then click Event Viewer.
Right-click the appropriate log file (Application,Security,System,Directory Service, orFile Replication Service).
Click Save Log File As.
Type a name for the file, and click Save.