Select a specific board and sprint in the Jira Software filters.
Select the required fields.
Save data source, and then export it.
Select a specific board in the Jira Software filters.
Enter the corresponding JQL in the local filter, and then select the required fields.
Save data source, and then export it.
Select a specific board and sprints in the Jira Software filters.
Deactivate the Sprints filter for the Sprints table.
Select the required fields.
Save data source, and then export it.