In the Visual Basic Editor (VBE), the Project Explorer is located at the upper-left corner of the client area. Below shows a screen grab of this window:
The Project Explorer is a tree structure that has top nodes that represents the currently open Excel VBA Projects. Every Excel Workbook has a corresponding project node that can be explored by clicking its sub-nodes. Each project node has 4 sub-nodes; Objects, Forms, Modules and Class Modules.
