If the LabelInfo.xml file in the docMetadata folder exists and the size is 0 then the file will not open and produces the following message.
Aspose.Slides.PptxReadException: Root element is missing.
—> System.Xml.XmlE…... (Presentation , Stream , InterruptionToken ) — End...trace — at . (Presentation , Stream , InterruptionToken ) at Aspose...