Example of File and Folder structure └───2018 └───May-2018_logfile.log └─── Jun-2018_logfile.log └───Jul-2018_logfile.log └───Aug-2018_logfile.log Log4net.config configuration example <log4net> <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender, log4net"> <file type="log4net.Util.PatternString" value="C:/logs/log4netLogs/%date{yyyy}/" /> <appendToFile value="true" /> <rollingStyle value="Date" /> <staticLogFileName value="false" /> <datePattern value="MMM-yyyy'_logfile.log'" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger %M - %message%newline%newline" /> </layout> </appender> <logger name="File"> <level value="All" /> <appender-ref ref="...