Prerequisite before exporting the file
Coverage Start Date should be mapped in the template field mapping.

Employee enrolment effective date : 01012015
Employee enrollment termination date : 01312016

Export the full file by specifying the period as 01012016 to 01312016

Expected result : should reflect the termination date as 01312016
Actual result : reflecting it as blank.
Reason : As per tradition export behaviour it considered year end period.