2007 IFDS Worlds

Application/JSON is used to define web content and file extensions with Javascript structured information inside. JSON is a widely used data definition language and is very popular in internet applications.

A dynamic-link library (DLL) is a module that contain functions and data that can be used by another module (application or DLL). A DLL can define two kinds of functions: exported and internal. The exported functions are intended to be called by other modules, as well as from within the DLL where they are defined. Internal functions are typically intended to be called only from within the DLL where they are defined. Although a DLL can export data, its data is generally used only by its functions. However, there is nothing to prevent another module from reading or writing that address.

The Portable Document Format (PDF) is the file format created by Adobe Systems in 1993 for document exchange. PDF is a fixed-layout format used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system. Each PDF file encapsulates a complete description of a 2-D document (and, with Acrobat 3-D, embedded 3-D documents) that includes the text, fonts, images, and 2-D vector graphics that compose the documents.

File extension TIMESTAMP is used by various applications to store time and date information. Timestamp is a number which is calculated based on a specific time and date when file was created or modified. Timestamp information is used to check when file was created and updated

Temporary files may be created by computer programs for a variety of purposes; principally when a program cannot allocate enough memory for its tasks, when the program is working on data bigger than architecture's address space, or as a primitive form of inter-process communication.

File extension APK is used by Android Operating System to store installation packages. These packages could be downloaded and installed on any compatible Android device.

KML files are very often distributed as KMZ files, which are zipped KML files with a .kmz extension. When a KMZ file is unzipped, a single doc.kml is found along with any overlay and icon images referenced in the KML.