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<body><span class="vcard"><a class="email" href="mailto:mikekaganski@hotmail.com" title="Mike Kaganski <mikekaganski@hotmail.com>"> <span class="fn">Mike Kaganski</span></a>
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<a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - [FILEOPEN] Missing content from bare BIFF8 XLS Files"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=144732">bug 144732</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">CC</td>
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<td>erack@redhat.com
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<b><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - [FILEOPEN] Missing content from bare BIFF8 XLS Files"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=144732#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - [FILEOPEN] Missing content from bare BIFF8 XLS Files"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=144732">bug 144732</a>
from <span class="vcard"><a class="email" href="mailto:mikekaganski@hotmail.com" title="Mike Kaganski <mikekaganski@hotmail.com>"> <span class="fn">Mike Kaganski</span></a>
</span></b>
<pre>The file is indeed not a proper BIFF8 file as described in [MS-XLS]. The
documentation requires (2.1.1 Compound File) that "A file of the type specified
by this document MUST be an OLE compound file as specified in [MS-CFB]".
The latter documentation requires (2.2 Compound File Header):
<span class="quote">> The Compound File Header structure MUST be at the beginning of the file (offset 0).
> ...
> Header Signature (8 bytes): Identification signature for the compound file structure,</span >
and MUST be set to the value 0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1.
<span class=""><a href="https://bugs.documentfoundation.org/attachment.cgi?id=175276" name="attach_175276" title="Demonstration of issue">Attachment 175276</a> <a href="https://bugs.documentfoundation.org/attachment.cgi?id=175276&action=edit" title="Demonstration of issue">[details]</a></span> starts with 0x09 0x08 0x08 0x00, is it some separate record
of BIFF? Is there a specification regarding such partial files somewhere?
[MS-XLS]
<a href="https://docs.microsoft.com/en-us/openspecs/office_file_formats/ms-xls/cd03cb5f-ca02-4934-a391-bb674cb8aa06">https://docs.microsoft.com/en-us/openspecs/office_file_formats/ms-xls/cd03cb5f-ca02-4934-a391-bb674cb8aa06</a>
[MS-CFB]
<a href="https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-cfb/53989ce4-7b05-4f8d-829b-d08d6148375b">https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-cfb/53989ce4-7b05-4f8d-829b-d08d6148375b</a></pre>
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