# Property List | | In the macOS, iOS, NeXTSTEP, and GNUstep programming frameworks, **Property List** files are files that store serialized objects. Property list files use the filename extension .plist, and thus are often referred to as p-list files. | |-|-| | | wikipedia:: [Property list](https://en.wikipedia.org/wiki/Property_list) | Apple, MacOS, iOS - .plist