In QlikSense make use of the License monitor and Operations Monitor Dashboard for your auditing, as it gives you the entire event history of every user and the changes hay have invoked.
The audit files in QlikSense are found with this name : <MachineName>_AuditSecurity_Repository.txt
In Qlikview , Governance dashboard gives you the same functionality.
For additional information check the Links below.
check these links for your question:
Audit Log- Where I can get it?
- Sangram Reddy.