Disk Usage 
Overview
The cPanel Disk Usage Viewer allows you to see where the files are in your site that are taking up disk space. You can use the viewer to view all of the files in your site and find out how much space each file takes up.
To access the Disk Usage Viewer, click on the icon above the words Disk Usage on the main screen of your cPanel interface.
To learn more about using the Disk Usage Viewer, click on one of the topics listed below it in the contents window of this manual.
The Disk Usage Viewer in the x2 theme appears as follows:

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