As the Release Coordinator for my company, it would be extremely convenient if JIRA allowed you to export the release notes from each release in an Excel spread sheet. It would save me the headache of copying every issue separately to format each cell.  I really need something that is organized and easily shared with my team, but also professional enough to send to clients!  

Even just a basic spreadsheet with columns for Ticket Number and Summary would be helpful, and adding in customizable fields would be fantastic!