.SUCK File Extension

Offline website data file created by SiteSucker, a Mac program used to download websites for offline viewing; saves a list of websites that have been used for offline download; enables users to manage downloaded websites and open them on the local computer.

SUCK files can save information about multiple downloaded websites, and each offline website can have its own directory location. To set the location of the downloaded website files, choose Settings → Edit Settings... and then modify the "Download Folder:" option within the "General" tab.