Hi
I realise that screenshots are probably not a great idea on this mailing list
as they appear to get stripped!
Let me try to rephrase my issue (which is probably due to a fundamental lack of
understanding about OLE10Native objects and how they are written!) …
I need to extract OLE10Native embedded files from .doc files (CDF). For this I
use the approach used by the POI unit test
org.apache.poi.poifs.filesystem.TestOle10Native. What I find is that for some
documents it works and for others it doesn’t. In failure cases it throws this
exception:
org.apache.poi.poifs.filesystem.Ole10NativeException: Invalid Ole10Native
at org.apache.poi.poifs.filesystem.Ole10Native.<init>(Ole10Native.java:167)
at
org.apache.poi.poifs.filesystem.Ole10Native.createFromEmbeddedOleObject(Ole10Native.java:91)
Looking in the source of Ole10Native at the offending line I see:
if (totalSize < ofs) {
throw new Ole10NativeException("Invalid Ole10Native");
}
Can anyone shed any light on what this means and why it happens? As I said in
my previous mail, if the ‘broken’ doc is saved as a docx with Word and then the
docx is unzipped, a file called ./word/embeddings/oleObject1.bin is present
which I assume to be the OLE10 object in the .doc file.
Thanks,
- Chris
Chris Bamford
Senior Developer
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