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  2. Archive bit - Wikipedia

    en.wikipedia.org/wiki/Archive_bit

    The archive bit can be set or cleared with the attributes property [4] in VBScript or JScript. The archive bit is a file attribute and not part of the file itself, so the contents of the file remain unchanged when the status of the archive bit changes.

  3. Resource Hacker - Wikipedia

    en.wikipedia.org/wiki/Resource_Hacker

    Resource Hacker (also known as ResHacker or ResHack) is a free resource extraction utility and resource compiler for Windows developed by Angus Johnson. It can be used to add, modify or replace most resources within Windows binaries including strings, images, dialogs, menus, VersionInfo and Manifest resources.

  4. FreeArc - Wikipedia

    en.wikipedia.org/wiki/FreeArc

    FreeArc uses LZMA, prediction by partial matching, TrueAudio, Tornado and GRzip [7] algorithms with automatic switching by file type. Additionally, it uses filters to further improve compression, including REP (finds repetitions at separations up to 1gb), DICT (dictionary replacements for text), DELTA (improves compression of tables in binary data), BCJ (executables preproccesor) and LZP ...

  5. 7-Zip - Wikipedia

    en.wikipedia.org/wiki/7-Zip

    The 7-Zip deflate encoder implementation is available separately as part of the AdvanceCOMP suite of tools. The decompression engine for RAR archives was developed using freely available source code of the unRAR program, which has a licensing restriction against creation of a RAR compressor. 7-Zip v15.06 and later support extraction of files in ...

  6. ZIP (file format) - Wikipedia

    en.wikipedia.org/wiki/ZIP_(file_format)

    If the bit at offset 3 (0x08) of the general-purpose flags field is set, then the CRC-32 and file sizes are not known when the header is written. If the archive is in Zip64 format, the compressed and uncompressed size fields are 8 bytes long instead of 4 bytes long (see section 4.3.9.2 [34]). The equivalent fields in the local header (or in the ...

  7. Double-precision floating-point format - Wikipedia

    en.wikipedia.org/wiki/Double-precision_floating...

    Sign bit: 1 bit; Exponent: 11 bits; Significand precision: 53 bits (52 explicitly stored) The sign bit determines the sign of the number (including when this number is zero, which is signed). The exponent field is an 11-bit unsigned integer from 0 to 2047, in biased form: an exponent value of 1023 represents the actual zero. Exponents range ...

  8. WinRAR - Wikipedia

    en.wikipedia.org/wiki/WinRAR

    The RAR 5 format improves multi-core processor utilization, and adds a larger dictionary size of up to 1 GiB with 64-bit WinRAR. Special optional compression algorithms optimized for RGB bitmaps, raw audio files, Itanium executables, and plain text , which were supported by earlier versions, are supported only in the older RAR format, not RAR5 ...

  9. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Mach-O binary (64-bit) FE ED FE ED: þíþí: 0 JKS Javakey Store [32] CE FA ED FE: Îúíþ: 0 Mach-O binary (reverse byte ordering scheme, 32-bit) [33] CF FA ED FE: Ïúíþ: 0 Mach-O binary (reverse byte ordering scheme, 64-bit) [33] 25 21 50 53 %!PS: 0 ps PostScript document: 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 53 46 2D 33 2E ...