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This package provides a library for reading Microsoft’s Compound File Binary format (CFB), formerly known as OLE Compound Documents, the Advanced Authoring Format (AAF), or just plain old Microsoft Office files (the non-XML sort). This format is also widely used with certain media systems and a number of scientific applications (tomography and microscopy).

The code is pure Python and should run on any platform; it is compatible with Python 2.7 (or above) and Python 3.2 (or above). The library has an emphasis on rigour and performs numerous validity checks on opened files. By default, the library merely warns when it comes across non-fatal errors in source files but this behaviour is configurable by developers through Python’s warnings mechanisms.

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