I am testing the Excel-like Issue Editor for Jira 1.12 and it is useful for bulk editing of issues based on a filter in place of using Jira's built in Bulk Edit capability.
In addition to editing, it would be useful to be able to export the data to Excel.
It would also be useful to be able to add additional fields and re-order them without having to go back to the original Jira filter.
Please respond if you have similar needs and if there are any other Apps in the marketplace that already have this kind of functionality.