You can export the Credit Leave Report, but it will not show the effective date and expiry date. You can export the credit leave validation to see the credit leave expiry date. Please find the steps as follows to do this:
Credit Leave Summary Entitlement Report
Go to the Leave module, Reports, Leave Entitlement Report.
Select the Report Type Credit Leave Summary Entitlement.
Select the Leave Type ID from OIL to OIL.
Click Export, Export All, and save to your PC.
Export Credit Leave Validation
Click Leave Module, Modules, Credit Leave Progression.
Select the employee and click Validate.
Click Export, and save to your PC.