In Reports folder I am not getting any useful report

After a Test Suite Execution in Reports Folder I am getting the following files:-

Note:- Other than these I am not getting any HTML,XLSX or other useful reports.
And there is no Reports tab under Project->Settings->plugins path to configure

I am using Katalon 6.3.1

For newer version of Katalon above version 6.1.4, you have to install the below plug in manually. Kindly check the below link for details.