When used without an object qualifier, this property returns an Application
object that represents the Microsoft Excel application. When used with an object qualifier, this property returns an Application object that represents the creator of the specified object (you can use this property with an OLE Automation object to return the application of that object). Read-only.
expression A variable that represents an Interior object.
This example displays a message about the application that created myObject.
Visual Basic for Applications
Set myObject = ActiveWorkbook
If myObject.Application.Value = "Microsoft Excel" Then
MsgBox "This is an Excel Application object."
MsgBox "This is not an Excel Application object."