The first 4 bytes may contain the length of the uncompressed data. That's how
OLE data is stored in the binary formats.
Yegor
Tried reading the .bin file with 7-Zip-Jbindings, no go. It wasn't recognized
as any of
ARJ BZIP_2 CAB CHM CPIO CDEB ISO LZH NSIS RAR SPLIT TAR Z ZIP
Egads.
-----Original Message-----
From: Dmitry Goldenberg
Sent: Thursday, August 28, 2008 1:15 PM
To: POI Users List
Subject: RE: How to extract embedded files from Office 07
1. I got two .bin files, oleObject1 and oleObject2.
2. the UNIX file utility spits out "Microsoft Office Document"
3. the magic number on .bin is d0 cf 11 e0 a1 b1 1a e1 which explains #2.
4. this seems to be the BIN/ISO format. Would I be able to read it with
something like 7-Zip-Jbinding perhaps? Is there an easier way to decompress the
file/extract contents?
Thanks.
- Dmitry
-----Original Message-----
From: Nick Burch [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 28, 2008 1:03 PM
To: POI Users List
Subject: Re: How to extract embedded files from Office 07
On Thu, 28 Aug 2008, Dmitry Goldenberg wrote:
I've noticed that some embeddings in '07 are represented as .bin files
which they store in the /embeddings subdirectory within the doc
structure. For example, I embedded a zip file and it showed up as
oleObject1.bin.
Does anyone have any idea as to how to read this type of file or convert
it back to the original zip?
Two things I'd suggest trying:
* if you embed two zip files, do you get oleObject1 and oleObject2, or
just a bigger oleObject1 ?
* if you unzip the parent ooxml file, and run the unix "file" utility
against oleObject1, what does it say the file is?
Nick
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