You’ve downloaded and expanded the Xdata archive, and now you're ready to install.
In the downloaded and expanded Xdata archive, you'll find sub-folders corresponding to different QuarkXPress versions. Drag all of the files out of the appropriate version's sub-folder into the "XTensions" sub-folder of the QuarkXPress application's main folder.
Start or restart QuarkXPress, then visit Xdata > About... to verify your installation.
For further information, see our installation help, or email support@emsoftware.com with any questions.