I am working on a piece of custom code that will access the BuiltInDocumentProperties of various Office objects such as MS Word, Excel and PowerPoint.
The goal is to modify the BuiltInDocumentProperties and save the file. I have already implemented this for the Excel and Word documents. However, for PowerPoint’s presentation object, I can’t seem to declare the instance variable as Presentation using the Microsoft.Office.Interop.PowerPoint package. (Please refer to attachments)
Any help is highly appreciated.