When building a report, you can select a custom date range to focus on. To export a report with custom dates:
Click on Reports from the left-hand navigation menu.
Once the report has been selected, scroll down to the bottom of the page to the Date range section and select Custom date range.
A calendar will open and you can select the start and end dates of your range.
IMPORTANT: Reports cannot be exported for more than one year at a time, depending on the start date selected. You may therefore need to export others with additional customized dates.