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The best-known is the string "From " (including trailing space) at the beginning of a line, used to separate mail messages in the mbox file format. By using a binary-to-text encoding on messages that are already plain text, then decoding on the other end, one can make such systems appear to be completely transparent. This is sometimes referred ...
For example, the CCS PIC compiler supports placing a ";" comment line at the top or bottom of an Intel HEX file, and its manuals states "some programmers (MPLAB in particular) do not like comments at the top of the hex file", which is why the compiler has the option of placing the comment at the bottom of the hex file. [7]
PDF files start with "%PDF" (hex 25 50 44 46). DOS MZ executable files and the EXE stub of the Microsoft Windows PE (Portable Executable) files start with the characters "MZ" (4D 5A), the initials of the designer of the file format, Mark Zbikowski. The definition allows the uncommon "ZM" (5A 4D) as well for dosZMXP, a non-PE EXE. [12]
Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office . [ 44 ]
Ascii85, also called Base85, is a form of binary-to-text encoding developed by Paul E. Rutter for the btoa utility. By using five ASCII characters to represent four bytes of binary data (making the encoded size 1 ⁄ 4 larger than the original, assuming eight bits per ASCII character), it is more efficient than uuencode or Base64, which use four characters to represent three bytes of data (1 ...
Byte count — 2 character (1 byte) field containing the length of the data fields. Prefix checksum — 2 character (1 byte) field containing the checksum of the prefix. The prefix checksum is the 8-bit sum of the four-bit hexadecimal value of the six digits that make up the address and byte count.
Intel hexadecimal object file format, Intel hex format or Intellec Hex is a file format that conveys binary information in ASCII text form, [10] making it possible to store on non-binary media such as paper tape, punch cards, etc., to display on text terminals or be printed on line-oriented printers. [11]
LEB128 or Little Endian Base 128 is a variable-length code compression used to store arbitrarily large integers in a small number of bytes. LEB128 is used in the DWARF debug file format [1] [2] and the WebAssembly binary encoding for all integer literals. [3]