![]() The format is probably related to the "Stream" format found in similar Excel versions. The format used in earlier, pre-97 ("1.0" 1989 through "7.0" 1995) versions of Word are less known, but both OpenOffice and LibreOffice contain open-source code for reading these formats. Since 2008 the specification has been updated several times the latest change was made in May 2022. However, this specification does not describe all of the features used by DOC format and reverse engineered work remains necessary. DOC format specification under the Microsoft Open Specification Promise. On February 15, 2008, Microsoft released a. Sun Microsystems and reverse engineered the file format. The DOC format specification was available from Microsoft on request since 2006 under restrictive RAND-Z terms until February 2008. Specifications of later versions of Microsoft Office binary file formats were not publicly available. Some specifications for Microsoft Office 97 binary file formats were published in 1997 under a restrictive license, but these specifications were removed from online download in 1999. Command line programs for Unix-like operating systems that can convert files from the DOC format to plain text or other standard formats include the wv library, which itself is used directly by AbiWord.īecause the DOC file format was a closed specification for many years, inconsistent handling of the format persists and may cause some loss of formatting information when handling the same file with multiple word processing programs. Other word processors, such as Writer, IBM Lotus Symphony, Apple Pages and AbiWord, can also create and read DOC files, although with some limitations. The DOC format is native to Microsoft Word. In Microsoft Word 2007 and later, the binary file format was replaced as the default format by the Office Open XML format, though Microsoft Word can still produce DOC files. Microsoft Word versions before Word 97 ("8.0") used a different format from the OLE and CFBF-based Microsoft Word 97 – 2003. ![]() The DOC files created with Microsoft Word versions differ. Microsoft Word Binary File Format īinary DOC files often contain more text formatting information (as well as scripts and undo information) than some other document file formats like Rich Text Format and Hypertext Markup Language, but are usually less widely compatible. Microsoft has used the extension since 1983. doc (an abbreviation of " document") is a filename extension used for word processing documents stored on Microsoft's proprietary Microsoft Word Binary File Format. Microsoft Office XML formats, Office Open XML
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