Property List/XML

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In the OS X, iOS, NeXTSTEP, and GNUstep programming frameworks, property list files store serialized objects. It is the standard way to save and load data between the internal representation within the objects defined in an Objective-C program and disk files, in order to store program settings and other data. This is the XML version but there is also a binary version of the format.

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Extensions.plist
Signatures
3c3f786d6c2076657273696f6e3d at byte 0 (XML Property List)
3c3f786d6c2076657273696f6e3d22312e302220656e636f64696e673d225554462d38223f3e at byte 0
PRONOMfmt/979
WikidataQ27979535

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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