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  2. File format - Wikipedia

    en.wikipedia.org/wiki/File_format

    File format. wav-file: 2.1 megabytes. ogg-file: 154 kilobytes. A file format is a standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary or free .

  3. ISO base media file format - Wikipedia

    en.wikipedia.org/wiki/ISO_base_media_file_format

    Website. www .iso .org /standard /83102 .html. The ISO base media file format ( ISOBMFF) is a container file format that defines a general structure for files that contain time-based multimedia data such as video and audio. [3] [4] It is standardized in ISO / IEC 14496-12, a.k.a. MPEG-4 Part 12, and was formerly also published as ISO/IEC 15444 ...

  4. Office Open XML - Wikipedia

    en.wikipedia.org/wiki/Office_Open_XML

    Office Open XML (also informally known as OOXML) [3] is a zipped, XML -based file format developed by Microsoft for representing spreadsheets, charts, presentations and word processing documents. Ecma International standardized the initial version as ECMA-376. ISO and IEC standardized later versions as ISO/IEC 29500.

  5. Video file format - Wikipedia

    en.wikipedia.org/wiki/Video_file_format

    Video file format. A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size. A video file normally consists of a container (e.g. in the Matroska format) containing visual (video without audio) data in a video coding format (e.g ...

  6. ZIP (file format) - Wikipedia

    en.wikipedia.org/wiki/ZIP_(file_format)

    ZIP is an archive file format that supports lossless data compression. A ZIP file may contain one or more files or directories that may have been compressed. The ZIP file format permits a number of compression algorithms, though DEFLATE is the most common.

  7. GeoPackage - Wikipedia

    en.wikipedia.org/wiki/GeoPackage

    GeoPackage ( GPKG) is an open, non-proprietary, platform-independent and standards-based data format for geographic information systems built as a set of conventions over a SQLite database. Defined by the Open Geospatial Consortium (OGC) [2] with the backing of the US military [3] and published in 2014, GeoPackage has seen widespread support ...

  8. WAV - Wikipedia

    en.wikipedia.org/wiki/WAV

    WAV is a file format for a computer to use that cannot be understood by most CD players directly. To record WAV files to an Audio CD the file headers must be stripped, the contents must be transcoded if not already stored as PCM, and the PCM data written directly to the disc as individual tracks with zero-padding added to match the CD's sector ...

  9. Text file - Wikipedia

    en.wikipedia.org/wiki/Text_file

    Document file format, Generic container format. A text file (sometimes spelled textfile; an old alternative name is flatfile) is a kind of computer file that is structured as a sequence of lines of electronic text. A text file exists stored as data within a computer file system. In operating systems such as CP/M and DOS, where the operating ...