ⓘ File format
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 File formats may be either proprietary or free and may be either unpublished or open.
Some file formats are designed for very specific types of data files like PNG, for example, store bitmapped images using lossless data compression. However, other file formats designed to store different types of data: the OGG format can act as a container for various types of multimedia, including any combination of audio and video, with or without text, such as subtitles and metadata. The text file can contain any stream of characters including possible control characters, and is encoded in one of various character encoding schemes. Some file formats, such as HTML, scalable vector graphics, and source code of the software are text files with specific syntax that allows to use them for specific purposes.