Collating Excel Worksheets Imbedded in Powerpoint - excel

Question

Background: I am on the backend of an effort to capture and collate data collected in PowerPoint template form. A template was distributed. The result is ~150 PowerPoint 2010 presentations of ~30 slides each. ~15 of slides in each presentation contain an imbedded XLS.
Benefit to community: Examples of PowerPoint to Excel techniques and in general MS Office techniques vs. solely one MS Office tool.
Problem: I'm only an introductory VBA developer. I seem to find many examples how to get Excel data to PowerPoint, but not much (!) about this seemingly backward approach of data from PowerPoint into Excel. PeltierTech.com gets me close. I found some texts but need a solution before I can get through them.
Need:
1) Loop through all presentations (.PPTX) in a folder (open/close)
2) Inspect each slide in each presentation for an imbedded XLS
3) If found
a) Copy the imbedded source XLS range (not image)
b) Find the last row of the target XLS tab
c) Write the .PPTX name into tab column A
d) Paste the source XLS into target Excel column B
Finally I would prefer the "host" VBA be Excel.
The ideal result is a single .XLSX with ~15 tabs. The resultant data can be scrubbed for unique headers and converted into a pivotable dataset.
This doesn't appear the most to be the most challenging exercise. I think I'm hung on combining the two object models in a single set of procedures. (Yes, the references are correctly set ;-) )
THANK YOU!!!

Answer 1

Here is an example I wrote to extract one chart data from PP file (code is in a excel module). I've commented the code so you will be able to build your own loops to this, but the mechanics of extracting chart data from PP-file via Excel-VBA is as in the following block -
'"Microsoft PowerPoint xx.x Object Library" needed to be installed
'
Sub OpenPPandCopyChartData()
'Create an instance of Powerpoint
Dim PPT As Object
Set PPT = CreateObject(Class:="PowerPoint.Application")
'Open the powerpoint file
Dim pp As PowerPoint.Presentation
Set pp = PPT.Presentations.Open(Filename:=ThisWorkbook.Path & "\Presentation1.pptx", ReadOnly:=msoTrue)
'Select the wanted slide
Dim ps As PowerPoint.slide
Set ps = pp.Slides(1)
'Select the shape
Dim sh As PowerPoint.Shape
Set sh = ps.Shapes(2)
'You can make your own loop to check all the shapes if they contain a chart by using HasChart Method
Debug.Print sh.HasChart = msoTrue
'Select the shape that has chart and activate
sh.Chart.ChartData.Activate
'Set the activated workbook to a variable
Dim wb As Workbook
Set wb = sh.Chart.ChartData.Workbook
'Select the sheet the data is contained
Dim ws As Worksheet
Set ws = wb.Sheets(1)
'Select the range and copy
ws.UsedRange.Copy
'Set where to copy
ThisWorkbook.Sheets(1).Range("A1").PasteSpecial xlPasteValues
wb.Close
pp.Close
PPT.Quit
End Sub
The code opens the PPT.file in the same folder that the Excel file is in and selects Slide(1) and Shape(2) from that slide. Then it activates the chart data (if not present this code will cause a subscript out of range error, so on your own code a data checking will be needed) and copies it to the Excel that the sub was started in.