1. First thing I want is can I export these logs to Microsoft Excel if Yes how do I do it. If no can we add this feature as at many times I have to give these logs to the manangement for some issues with emails.

This is not yet implemented in iRedAdmin-Pro, sorry.
How about write shell/python/perl/... script to query SQL server directly, and dump records to Excel file? With cron job, you can dump them every day.

Sure you can, please update below two variables in libs/settings.py:

AMAVISD_REMOVE_MAILLOG_IN_DAYS = 7
AMAVISD_REMOVE_QUARANTINED_IN_DAYS = 7

Important notes:

1) It's strongly recommended to place all your settings in libs/settings_local.py to override settings in libs/settings.py, so that you don't need to sync settings after upgrading iRedAdmin-Pro.

2) You can keep logs of in/out emails as long as you want, but the more records you keep, the longer time it need while loading pages of Sent/Received Mails in iRedAdmin-Pro.

We can view sent and receive logs in iRedAdminPro version
1. First thing I want is can I export these logs to Microsoft Excel if Yes how do I do it. If no can we add this feature as at many times I have to give these logs to the manangement for some issues with emails.
2. These logs which are stored are for 7 days can I extend the logs for say 1 month or probably if I have sufficient space of Hard Drive can I keep the Logs for 1 year if yes I do I do it.

Neil