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From: Chris Bamford <cbamford@mimecast.com>
To: POI Users List <user@poi.apache.org>
Subject: Re: Extracting embedded files from HWPF docs
Thread-Topic: Extracting embedded files from HWPF docs
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Date: Mon, 10 Jun 2013 20:12:19 +0000
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Hi Nick,


On 10 Jun 2013, at 14:09, Nick Burch wrote:

>=20
>=20
>> Now POIFSLister shows the ObjectPool and the item in it:
>>=20
>> Root Entry -
>> SummaryInformation <(0x05)SummaryInformation> [412 / 0x19c]
>> DocumentSummaryInformation <(0x05)DocumentSummaryInformation> [280 / 0x1=
18]
>> WordDocument [4142 / 0x102e]
>> 1Table [2087 / 0x827]
>> ObjectPool -
>>   _1432368106 -
>>     CompObj <(0x01)CompObj> [76 / 0x4c]
>>     ObjInfo <(0x03)ObjInfo> [6 / 0x6]
>>     Ole10Native <(0x01)Ole10Native> [568849 / 0x8ae11]
>>     EPRINT <(0x03)EPRINT> [5000 / 0x1388]
>> CompObj <(0x01)CompObj> [113 / 0x71]
>> Data [4096 / 0x1000]
>=20
> Try the Ole10Native - POI has code to handle that. My best guess is your =
data is in there
>=20
I'm not familiar with the POI code at all, but I found a useful utility cal=
led POIFSDump which writes out all the objects to file.  I found that if I =
strip off the first 944 bytes from the Ole10Native file, I get the original=
 MP3 :-)
These 944 bytes appear to be some sort of header...
Questions=20

1) Is this header always 944 in size?
2) Is there a POI header object for it?
3) Is there code which skips this block and accesses the 'file data' direct=
ly?

Thanks again
- Chris
=20
> Nick
>=20
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>=20
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