Rich text file format12/26/2023 For example, a file or string consisting of "hello" (in whatever encoding), following by 4 bytes that express a binary integer that is not just a character(s), is a binary file, not plain text by even the loosest common usages. Plain text is also sometimes used only to exclude "binary" files: those in which at least some parts of the file cannot be correctly interpreted via the character encoding in effect. As Unicode-based encodings such as UTF-8 and UTF-16 become more common, that usage may be shrinking. In principle, plain text can be in any encoding, but occasionally the term is taken to imply ASCII. For example, that could exclude any indication of fonts or layout (such as markup, markdown, or even tabs) characters such as curly quotes, non-breaking spaces, soft hyphens, em dashes, and/or ligatures or other things. The term is sometimes used quite loosely, to mean files that contain only "readable" content (or just files with nothing that the speaker doesn't prefer). Plain text is different from formatted text, where style information is included from structured text, where structural parts of the document such as paragraphs, sections, and the like are identified and from binary files in which some portions must be interpreted as binary objects (encoded integers, real numbers, images, etc.). It may also include a limited number of "whitespace" characters that affect simple arrangement of text, such as spaces, line breaks, or tabulation characters (although tab characters can "mean" many different things, so are hardly "plain"). file contents) that represent only characters of readable material but not its graphical representation nor other objects ( floating-point numbers, images, etc.). In computing, plain text is a loose term for data (e.g. Text file with portion of The Human Side of Animals by Royal Dixon, displayed by the command cat in an xterm window
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