In XenDesktop we have the facility to enable audit logs on our site so that we can find who is doing what on our citrix site. But unfortunately in studio, under logging option,we can only see limited logs(only till last 6 months). We need to use powershell to see more logs.  Use below commands to see logs on 24/Jan/2018 from 11:00 AM till 4:00 PM.

Add-pssnapin citrix*

Get-LogHighLevelOperation -Filter{ StartTime -ge “2018-01-24 11:00:00” -and EndTime -le “2018-01-24 16:00:00”}

More info about the command:

https://docs.citrix.com/de-de/xenapp-and-xendesktop/7/cds-reference-wrapper-rho/cds-sdk-wrapper-rho/cds-sdk-cmdlet-help/citrix-configurationlogging-admin-v1-wrapper-xd7/get-loghighleveloperation-xd7.html