Using JIRA-generated sheet [3.5.x]
Important
Since version 7.2.0 of Jira, there is no possibility to export issues to Excel. For more information please visit this page. This happened in response to a Microsoft Security update that stopped Excel files from opening correctly.
Jira Cloud doesn't support exporting issues to Excel as well.
There is a workaround, so this feature can be again turned on, however it is highly unrecommended.
You may consider taking a look into this manual if you use Jira below 7.2 version.
Feel free to tell us what topic should be covered: excelconnector@psc-software.atlassian.net