I need to export all reports/dashboards created/modified by 7 users (including admin's modified and excluding admin's default and "nobody" owner)
All default stuff shipped by splunk will be stored under default directories. Any objects created by user will be saved under $SPLUNK_HOME/etc/users/<user>/<app>/local
OR $SPLUNK_HOME/etc/apps/<app>/local/
(if the user shared the object at app-level).