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  2. data URI scheme - Wikipedia

    en.wikipedia.org/wiki/Data_URI_scheme

    When present, this indicates that the data content of the URI is binary data, encoded in ASCII format using the Base64 scheme for binary-to-text encoding. The base64 extension is distinguished from any media type parameters by virtue of not having a =value component and by coming after any media type parameters.

  3. List of XML and HTML character entity references - Wikipedia

    en.wikipedia.org/wiki/List_of_XML_and_HTML...

    In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.

  4. Character encodings in HTML - Wikipedia

    en.wikipedia.org/wiki/Character_encodings_in_HTML

    If the character encoding is an ASCII extension then the content up to and including the declaration itself should be pure ASCII and this will work correctly. For character encodings that are not ASCII extensions (i.e. not a superset of ASCII), such as UTF-16BE and UTF-16LE , a processor of HTML, such as a web browser, should be able to parse ...

  5. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Windows Virtual PC Virtual Hard Disk file format [85] 76 68 64 78 66 69 6C 65: vhdxfile: 0 vhdx Windows Virtual PC Windows 8 Virtual Hard Disk file format 49 73 5A 21: IsZ! 0 isz Compressed ISO image: 44 41 41: DAA: 0 daa Direct Access Archive PowerISO 4C 66 4C 65: LfLe: 0 evt Windows Event Viewer file format 45 6C 66 46 69 6C 65: ElfFile: 0 evtx

  6. List of filename extensions (S–Z) - Wikipedia

    en.wikipedia.org/wiki/List_of_filename_extensions...

    eXtensible Markup Language file XMF: eXtensible Music Format XP: eXtended Pattern FastTracker 2: XPL: X-Plane system file Laminar Research XPS: Open XML Paper Specification / OpenXPS Open standard document format initially created by Microsoft and similar in concept to Adobe PDF files XSD [31] [32] XML schema description XSF: data Microsoft ...

  7. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    HTML Form format HTML 4.01 Specification since PDF 1.5; HTML 2.0 since 1.2 Forms Data Format (FDF) based on PDF, uses the same syntax and has essentially the same file structure, but is much simpler than PDF since the body of an FDF document consists of only one required object. Forms Data Format is defined in the PDF specification (since PDF 1.2).

  8. Microsoft Compiled HTML Help - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help

    The Microsoft Reader's .lit file format is a modification of the HTML Help CHM format. CHM files are sometimes used for e-books. [13] Sumatra PDF supports viewing CHM documents since version 1.9. Various applications, such as HTML Help Workshop and 7-Zip can decompile CHM files. The hh.exe utility on Windows and the extract_chmLib utility (a ...

  9. Unicode and HTML - Wikipedia

    en.wikipedia.org/wiki/Unicode_and_HTML

    Web pages authored using HyperText Markup Language may contain multilingual text represented with the Unicode universal character set.Key to the relationship between Unicode and HTML is the relationship between the "document character set", which defines the set of characters that may be present in an HTML document and assigns numbers to them, and the "external character encoding", or "charset ...