Microsoft Releases Pre-2007 Binary File Format Specs 269
An anonymous reader writes "Microsoft has released the specifications for the binary file formats used by pre-2007 Microsoft Office applications. They're accurate this time! Honest! While the documents are enormous (Word alone requires 533 pages; Excel runs over 1000 plus another 850 pages for the Office 2007 binary format), they hopefully will be useful to developers trying to create or extract information from Microsoft Office files (which despite their flaws, have been the de facto standard in many fields for some time now)."