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| Name | TXT | FB2 |
| Full name | TXT - Raw text file | FB2 - FictionBook |
| File extension | .txt | .fb2, .fb2.zip |
| MIME type | text/plain | |
| Developed by | Microsoft | Dmitry Gribov |
| Type of format | Plain text | e-book file format |
| Description | On most operating systems the name text file refers to file format that allows only plain text content with very little formatting (e.g., no bold or italic types). Such files can be viewed and edited on text terminals or in simple text editors. | FictionBook is an open XML-based e-book format which originated and gained popularity in Russia. FictionBook files have the .fb2 filename extension. The FictionBook format does not specify the appearance of a document; instead, it describes its structure. For example, there are special tags for epigraphs, verses and quotations. |
| Technical details | Text file refers to a type of container, while plain text refers to a type of content. Text files can contain plain text, but they are not limited to such. At a generic level of description, there are two kinds of computer files: text files and binary files. | In contrast to other eBook formats (e.g. ePub), a FictionBook document consists of a single XML file. Images are converted to Base64 and reside inside the <binary> tag, so the size of the embedded images is increased by approximately 37%. FictionBook files are often distributed inside Zip archives. |
| Associated programs | Notepad, TextEdit, WordPad, UltraEdit | FBReader, AlReader, Haali Reader, STDU Viewer, CoolReader, Okular, Ectaco jetBooks. |
| Wiki | https://en.wikipedia.org/wiki/Text_file | https://en.wikipedia.org/wiki/FictionBook |