https://bz.apache.org/ooo/show_bug.cgi?id=126990

--- Comment #4 from John <[email protected]> ---
Created attachment 85564
  --> https://bz.apache.org/ooo/attachment.cgi?id=85564&action=edit
Some examples of damaged files - all zeros, garbage and a mixture

See the forum post 22 page term paper replaced with pound signs which is at
https://forum.openoffice.org/en/forum/viewtopic.php?f=6&t=17677#p81363.  You
will see well over 200 cases of "My document is all #####" reports, many with
uploaded damaged files.  I have identified a few below:

These reports have each uploaded files which are full of zeros:

1.  Retrieving document at
https://forum.openoffice.org/en/forum/viewtopic.php?f=6&t=17690
2.  File now contains nothing but # characters at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=18573
3.  Character Set issue opening an .ODT document at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=23463
4.  Problem with file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=25534
5.  .odt corrupted at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=25838
There are many more ...

These reports have each uploaded a damaged file:

1.  Re: ASCII Filter? Help me save my doc!!! at
https://forum.openoffice.org/en/forum/viewtopic.php?f=6&t=25503#p265546  The
file appears to be a valid .odt when you unzip it, but the file is damaged

2. Re: 22 pages term paper replaced with pound signs at
https://forum.openoffice.org/en/forum/viewtopic.php?f=6&t=17677&start=30#p275921
points to a file at http://www.mediafire.com/download/x75pb ... s_copy.ods
which is partially full of zeros and partially full of garbage.
There are many more ...

See the forum post [Hint] How did I fix my ODT file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532 (viewed 140,000
times) which has many, many corrupted files which have been uploaded.  Many
have been analysed by forum posters.  

A small collection include:

1 Re: [Hint] How did I fix my ODT file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532&start=390#p372337
uploaded a file clinical opthalmolog1.odt which appears to be a valid odt file,
but is full of zeros after FF0 (4,080) bytes.  Is the 2^n significant?

2 Re: [Hint] How did I fix my ODT file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532&start=420#p372836
has upl;oaded $R67BQ9D.odt which starts with readable text which looks like a
Firefox crash report, then is full of zeros, then has binary data and then ends
with zeros.

3 Re: [Hint] How did I fix my ODT file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532&start=330#p354771
Both dz.odt and mc.t.odt start off looking like a valid PK zip files, but then
just end - the files are corrupted.

4 Re: [Hint] How did I fix my ODT file at
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532&start=330#p357120
uploaded the water door.odt.  The file is full of garbage - it looks like a
dump of memory.

I have uploaded a ZIP file with examples of these damaged files.

There are also many reports, with uploaded files, where the file is perfect ...
but the XML tags in content.xml are incorrect.  acknak is often able to correct
the XML errors manually and thus recover the file.  For example, see
https://forum.openoffice.org/en/forum/viewtopic.php?f=7&t=1532&start=360#p357769
for currupted tags, which refers to Issue 126219: invalid xml on saving
document with comment/annotation

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