I've looked into this.

FOR THE ODT FILES ONLY:

The problem is that Microsoft supports ODF 1.1.  The later versions of LO (and 
OO.o) anticipate ODF 1.2 and by default use ODF 1.2-only features of the 
manifest in the ODT package.   The Microsoft ODF 1.1 implementations do not 
recognize those features and considers there to be something wrong.  If you let 
Word "attempt to correct" the document it will, and it will be fine.  (The only 
way it would not be fine is if the document was encrypted using something other 
than the default encryption that exists for ODF 1.1.  But Office won't accept 
any kind of encrypted ODF document, so the ODF 1.2 differences don't matter.)

Then you have the reverse problem.  If you save from Word as an ODT and take it 
back to one of these recent LO (and OO.o) versions, they will sometimes report 
that the ODF 1.1 that Office produced is corrupt.  (This appears to be related 
to their being some files in the package, such as for images, that are not in 
the manifest.)  If you let the LO (and OO.o) product "attempt to correct" it 
will and everything should work fine.

The problem is that the corruption message is heavy-handed and there are 
different ways where the down-level 1.1 and up-level 1.2-ready products are 
unforgiving, even though it is something that they can fix.  Also, if there 
really is a document corruption, as opposed to one of those correctable 
matters, we can't tell.

FOR THE DOC FILES:

I have not encountered or explored that.

 - Dennis

-----Original Message-----
From: At0mic [mailto:[email protected]] 
Sent: Saturday, June 04, 2011 07:19
To: [email protected]
Subject: [libreoffice-users] LO Writer 3.4.0 --- basic .doc/.odt files not 
understood properly by MS Office 2010

LibreOffice Writer 3.4.0 running under Windows 7 64-bit.

Problem 1 reproduction -
* Start Writer
* Create a document and type in a few words, nothing special or extravagant
* Save as an .odt file
* Load into MS Office 2010

Error message:
The file <filename> cannot be opened because there are problems with the 
contents.

Details
The file is corrupt and cannot be opened.

Clicking OK asks if you want to recover the contents of the document. The 
recovered document is correct and uncorrupted.

-----

Problem 2 reproduction -
* Start Writer
* Create another document and type in a few words
* Save as a .doc file (97/2000/XP)
* Load into MS Office 2010

Red toolbar message:
Protected view - Office has detected a problem with this file. Editing it may 
harm your computer. Click here for details.

It is then possible to click "Edit anyway" and get on with things. The loaded 
file is correct and uncorrupted.

---

In the past I've never had problems with basic files working between both word 
processors, but something has happened which is causing Office 2010 to dislike 
both the .doc and .odt versions of the files LO is saving. This is not a good 
thing. I'll refrain from calling it a bug in case there's an option within LO 
which can save the files in such a way as to pacify Office 2010. Otherwise I 
can't trust it to be usable in a mixed environment.

--
View this message in context: 
http://nabble.documentfoundation.org/LO-Writer-3-4-0-basic-doc-odt-files-not-understood-properly-by-MS-Office-2010-tp3023234p3023234.html
Sent from the Users mailing list archive at Nabble.com.

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