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Interface: ExtendedProperties ​
Decoded docProps/app.xml — the extended properties, which are the producer's own account of the deck rather than the author's metadata. Every field is optional (present only when the element is).
Deliberately a subset. <Slides>, <Words>, <Paragraphs> and the rest are statistics the producing application computed for the file it wrote; reporting them from a read model that can hand back an edited deck would be reporting a number about a document that no longer exists. The four here identify the producer and name the deck's parts, which stay true, and company is the one this library's write API can set.
Properties ​
application? ​
optionalapplication?:string
<Application> — the producing application, e.g. Microsoft Office PowerPoint.
appVersion? ​
optionalappVersion?:string
<AppVersion> — that application's version, in its own major.minor spelling (16.0000).
company? ​
optionalcompany?:string
<Company> (the write-side pptx.company).
titlesOfParts? ​
optionaltitlesOfParts?:string[]
<TitlesOfParts> — the flat vt:lpstr vector naming the deck's fonts, themes and slide titles in one list. It is the vector as written, NOT split by section: <HeadingPairs> holds the counts that partition it, and this library does not read them, so the caller that wants the slide titles alone has to pair the two itself.