I would suggest starting with Log Parser.
[https://www.microsoft.com/en-us/download/details.aspx?id=24659
[https://www.sentinelone.com/blog/log-parser-tutorial/
Or Powershell.
[https://devblogs.microsoft.com/scripting/learn-how-to-use-powershell-to-parse-the-firewall-log/
[https://social.technet.microsoft.com/Forums/en-US/f566c3a3-9656-4239-8005-258f6edc2fca/windows-firewall-log-parsing