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From bugzi...@apache.org
Subject [Bug 55748] Exception with message:Duplicate name " DocumentSummaryInformation" when reading xls File
Date Mon, 11 Nov 2013 23:11:50 GMT

--- Comment #3 from Nick Burch <apache@gagravarr.org> ---
Without the file, I can't be sure, but my hunch is that your file didn't come
from Excel but came from something that doesn't follow the spec properly

As far as I can tell, your file contains two OLE2 streams with exactly the same
entry name. I don't know which one Excel is picking (if any) when you do the
open and re-save, but it is clearly throwing one away to fix up your file. 

You should probably find out where the file came from, and see if you can talk
to whoever wrote that software to not duplicate the properties. In the mean
time, I'm very reluctant to remove the duplicate check as it'll catch other
problems, especially if I don't know where your broken file came from, and
without having that file (or one like it) to use in unit testing

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