When I unpacked the PPT document, I found that the value of fromWordArt in the ppt/slides/slide1.xml file was 1.
I compared the content of slideshows with and without WordArt and found that there are differences
20191129170432.png (5.9 KB)
Can these be used as the basis for judging the existence of WordArt?
WordArt.zip (28.8 KB)