Export all text boxes in ppt

Open PPT, press ALT+F11 to open the VBA editor, (for some computers FN+ALT+F11) right-click in the project view on the left, select Insert->Module, add a module, and the name does not need to be changed.

Then click the "Tools" menu at the top, select Reference, find "Microsoft Word X.0 Object Library" (where X is related to your version of OFFICE), hook it, and click OK

Paste the following code into the newly created module and press F5 (FN+F5 on some computers)

Sub Main() 
    On Error Resume Next 
    Dim temp As New Word.Document, tmpShape As Shape, tmpSlide As Slide 
    For Each tmpSlide In ActivePresentation.Slides 
        For Each tmpShape In tmpSlide.Shapes 
            temp.Range().Text = temp.Range() + tmpShape.TextFrame.TextRange.Text
        Next tmpShape 
    Next tmpSlide 
    temp.Application.Visible = True 
End Sub