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MICROSOFT OFFICE FILE CONVERTER PACK FOR MAC FOR MAC OS
MICROSOFT OFFICE FILE CONVERTER PACK FOR MAC CODE

If all characters are stored in 1-byte (Extended ASCII) encodings, typically in Windows code page 1252, the text will be quite legible, but without formatting. See Note below on Identification of Microsoft Word version in CompObj stream.įor a DOC file without encryption or password-protection, the text characters of the document will be seen in a Hex dump of the main WordDocument stream.

More detailed version info, e.g., "Microsoft Word 97-2003 Document" or "Microsoft Word 97-2004 Document".

Usually observed near end of file in documents created by recent versions of Microsoft Word:.

2-byte version identifier: Hex value C100.

Internal identifier for Word binary file (usually at byte offset 512 from beginning of DOC file):.

Note: For a CFB of major version 4, the rest of the first sector would be 3,584 bytes of zeroes.

480 bytes for remainder of the 512-byte header, which fills the first sector for a CFB of major version 3.

2-byte Hex value 0900 (indicating the sector size of 512 bytes used for major version 3) or 0C00 (indicating the sector size of 4096 bytes used for major version 4).

This byte order applies to all CFB files.

2-byte Hex value FEFF indicating little-endian byte order for all integer values.

2-byte Hex value 0300 indicating CFB major version 3 or value 0400 indicating CFB major version 4.

2-byte Hex value 3E00 indicating CFB minor version 3E.

Gary Kessler notes that the beginning of this string looks like "DOCFILE"

Header Signature for the CFB format with 8-byte Hex value D0CF11E0A1B11AE1.

A Word file in the DOC format begins as follows, with all values given as they occur in the physical file, for example when viewed using a Hex dump utility:

Streams that are not required by the specification, but are typically present in files written by Microsoft Word, include a SummaryInformation stream (with basic file-level metadata) and a DocumentSummaryInformation stream. The content of the WordDocument stream follows the CFB header and begins with a File Information Block (Fib), which contains information about the document, including a code identifying the DOC file as a Word Document, and specifies the file pointers to various portions that make up the document. Mandatory streams in a DOC file include a stream with the name "WordDocument" (also referred to as the "main stream") and a "table" stream with name "1Table" or "0Table". Each object entry has a name (also encoded in UTF-16, although most of the document content is usually stored in 1-byte characters) and points to the location in the file for the named object. The root directory has entries for each stream or storage object at the top level of the compound file hierarchy. A DOC file begins with a CFB header and must include a CFB root directory (identified by the name "Root Entry" in UTF-16). It consists of storages, streams, and substreams.

The CFB format provides a file-system-like structure within a file for the storage of arbitrary, application-specific streams of data. In 1997, the detailed structure of the CFB file used for Word documents was modified. doc extension has been an OLE (object linking and embedding) Compound File Binary file as specified in. Since the release of Word 6.0, in 1993, the structure of a Word document with the. The structure for the DOC format has been documented and kept up-to-date in. The specification released in 2007 is available as Microsoft Office Word 97-2007 Binary File Format Specification. doc as extension.Īlthough the DOC format is proprietary, it has been covered by Microsoft's Open Specification Promise since 2007. For convenience, the term "DOC" will be used here to refer specifically to this variant of the Microsoft Word files with. This format description is for the last of these formats.

MICROSOFT OFFICE FILE CONVERTER PACK FOR MAC FOR MAC OS

(a) Word for DOS (b) Word for Windows 1 and 2 and Word 3 and 4 for Mac OS (c) Word 6 and Word 95 for Windows and Word 6 for Mac OS (d) Word 97 and later for Windows and Word 98 and later for Mac OS. doc extension has been used for four distinct file formats: As of late 2020, the documentation for File formats that are supported in Word, from Microsoft, lists "Word 97-2003 Document." Īccording to the Wikipedia entry for Microsoft Word, the. Although it cannot support all functionality of the Word application introduced since Word 2007, the DOC format has continued to be available as an alternative to the DOCX/OOXML format, standardized in ISO/IEC 29500, for saving document files in Word. doc extension and referred to here as DOC, was the default format used for documents in Microsoft Word from Word 97 (released in 1997) through Microsoft Office 2003. The Microsoft Word Binary File format, with the. Microsoft Office Word 97-2003 Binary File Format (.doc).