Import Report Template in DHISReport Module

The aim of this ticket is to get a basic understanding of DHISReport Module.
First try to complete GCI-103 and GCI-163, then try to upload a sample Report Template as shown here: https://wiki.openmrs.org/display/docs/DHIS+Report+Module .

Try to get the essence of the module and write a short description (100-150 words) explaining your understanding about the module. Also attach a screenshot of uploaded Report Definition.