The Dependency explorer allows you to browse the connections between worksheets present in the current workbook. 

It shows other worksheets and Anaplan XL objects required for rendering each worksheet. It can be found by selecting the Anaplan XL > Manage > More > Dependencies... menu item, which opens the Publish Dependencies window. 

The items are shown as a tree, showing the components of the workbook. This includes the various worksheets, such as dashboards, variance analysis worksheets, charts, and grids, for example, that are required for each worksheet. If an object contains a specific name, it's listed here. If not, the location of that object is listed instead.