How to archive issues with Issue Archiver

Login as a Jira Administrator
Go to Administrator > Issue Archiver > Archive Issues
Select the options for Mode
1. Archive - Yes, delete all archived issue(s)
2. Snapshot - No, do not delete my archive issue(s)
Choose either Basic or Advanced and enter the settings to search for issue to be archived
Upon completion, click on the Submit button
Verify the issues to be archived is correct before clicking Start
Wait for the archiving to be completed
Once the archiving request is completed, you can download the archive/snapshot in a compressed zip file format. Otherwise you can download them later from Archive Manager or view them online by clicking on the Archive Viewer link

The archives are stored in an archives directory within the Jira home directory

Issue Archiver for Jira