Microsoft Office (DOC, XLS, PPT) Binary File Format Specifications Released – We’re talking the full technical specification… (The [MS-DOC].pdf alone is 553 pages of very dense specification information)

Microsoft Downloads - Microsoft Office File Formats Documentation

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The Microsoft Office file formats documentation provides detailed technical specifications for Microsoft proprietary file formats. 

The documentation includes a set of companion overview and reference documents that supplement the technical specifications with conceptual background, overviews of file format relationships and interactions, and technical reference information.

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There’s no fluff in these documents. They are very detailed, dense, highly technical and no nonsense file specifications.

The DOC spec is 553 pages, PPT 620 and XLS 1096 pages. If you’re writing code to read or write to the Office binary file formats then you ship has just arrived… (personally reading these makes my brain hurt, but that’s just me. ;)

 

Related Past Post XRef:
DOC, XLS and PPT Binary File Format Specifications Released (plus WMF, Windows Compound File [aka OLE 2.0 Structured Storage] and Ink Serialized Format Specifications and Translator to XML news)
Microsoft Office Binary File Format Specifications Coming to a Download Near You...