Install xPort directly from your Jira instance.
You need to be a Jira administrator to install apps!
Click on the cog icon on the top right bar and select Manage apps
The Atlassian Marketplace will be displayed, in the search bar type in xPort
The app will appear on the list, click on Install and then Accept & install.
After the installation, an xPort tab appears on your Jira navigation bar
The app is ready to use and you're ready to get started!