Hi @Rajeev Das ,
I can see that you are new here, welcome!
Unfortunately, currently it is not possible to download and export sprint reports in Jira, however, Atlassian has the following feature request:
Searching on community it seems that another way you could download and edit the sprint report is to use an add-on like eazyBI or Arsenale Dataplane to redo your own report (see examples here and here).
I really hope this helps, Rajeev!
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event