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A file signature is data used to identify or verify the content of a file. Such signatures are also known as magic numbers or magic bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be recognizable when ...
File magic number: bytes within a file used to identify the format of the file; generally a short sequence of bytes (most are 2-4 bytes long) placed at the beginning of the file; see list of file signatures; File checksum or more generally the result of a hash function over the file contents: data used to verify the integrity of the file ...
MEI – Music Encoding Initiative file format that attempts to encode all musical notations; MIDI – MIDI file format that is a music sheet for instruments; MUS, MUSX – Finale sheet music file; MXL, XML – MusicXML standard sheet music exchange format; MSCX, MSCZ – MuseScore sheet music file; SMDL – Standard Music Description Language ...
This is a comparison of binary executable file formats which, once loaded by a suitable executable loader, can be directly executed by the CPU rather than being interpreted by software. In addition to the binary application code, the executables may contain headers and tables with relocation and fixup information as well as various kinds of ...
File formats often have a published specification describing the encoding method and enabling testing of program intended functionality. Not all formats have freely available specification documents, partly because some developers view their specification documents as trade secrets, and partly because other developers never author a formal specification document, letting precedent set by other ...
Signature files are computer files of some kind of signature data, such as: signature values to be used in signature-based detection of viruses; in document retrieval, a quick and dirty filter that keeps all the documents that match to the query; a signature block automatically appended at the bottom of an email message; a digital signature;
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Interactive Forms is a mechanism to add forms to the PDF file format. PDF currently supports two different methods for integrating data and PDF forms. Both formats today coexist in the PDF specification: [37] [52] [53] [54] AcroForms (also known as Acrobat forms), introduced in the PDF 1.2 format specification and included in all later PDF ...