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I have at least one file that does this. It is a DOCX file. Anything I say is a guess, but....

When a file is stored on disk, things such as page numbers may be stored in the file, but, in LO, the data does not determine things like the page number; the view controller portion determines this. So, when you open a document, it shows things such as page numbers as they were stored in the file, but, these are recalculated after the document has been loaded. I believe that there are numbers field types that do this (for example, figure numbers).

I have loaded long documents, jumped to the middle of the document, and a few seconds latter, literally see the page number change in front of me. This was some time back and I don't remember what document I was dealing with...

So, why would page numbers and such change? there are many reasons I suppose. Your computer may have a slightly different version of the font specified in the document. I see this a lot when a Microsoft Specific font is used and I load the document on a Linux System that either substitutes the font (because it does not have the one specified) or it has one by the same name that is not really exactly the same (such as Courier).

I seem to remember an option that I used to see but don't remember seeing recently about formatting for printer fonts or something, might be related to that.

Especially if the document was not last edited in LO, there may be different pagination rules in LO than in something like Word.

Understanding what has changed is probably tricky at best without comparing the generated documents on the system that reports the change and the original system used to create the document. I suppose it is even possible that it does not know for certain if things have changed, but I am just guessing.

On 10/22/2013 05:27 PM, David Gast wrote:
Thanks to all who replied.  Perhaps I was not clear.  I am trying to find out why the Modified Flag
would be set if I have made no changes.  What objects can LibreOffice Calc *silently* modify when 
up that would cause the modified flag to be set?

While I can copy the files to a computer at home and try different versions, it would not actually 
be useful
for my purposes (perhaps someone on the list wants to know, however).  If some file opened without 
in another version of LibreOffice Calc, then it might mean that the file was created in that 
version.  That would
obviously be unacceptable if the exam was to be done in the lab using a particular version.

Unfortunately, the lab is public space (for many classes) and I do not
the authority  to modify what the technicians call the "lab load" in
the middle of a semester.  We will update to the latest version in early January.

Best regards,

David Gast
From: David Gast []
Sent: Monday, October 21, 2013 12:33
Subject: [libreoffice-users] Modified Flag Set / No Changes

Perhaps you can help.

My students submit examinations done in LibreOffice Calc to a web page.
I bundle them up and download them to a Windows XP box running
LO Version (Build ID: 2ef5aff).  In previous semesters, an older
version was used.  There were no problems like this in previous semesters.

This semester close to one third of the submitted examinations are
being modified when opened by me for grading.  I confirmed by

   1. Open file (usually from the Cygwin command line, but also from Recent Documents)
   2. Immediately clicking the X close icon in the upper right hand corner.
   3. A message pops up asking whether I want to change, dismiss, or cancel.

I typed nothing, yet if I cancel, and then do a save-as, the saved-as file is different.

I have two hypotheses.

RANDBETWEEN() is used this year in some problems, perhaps it sometimes causes this
problem.  I cannot recreate that behavior, however.  Further, Compare document shows no
differences, nor does oodiff.

Some students did work outside of class and the version they used is not 100% compatible
with the version in the labs.  My reasoning is that I found in one submittal (I have not checked
all of them to this level of detail) that one of the fonts changed from something like
"New Times Roman1" to "New Times Roman".   (I used unzip and then a script to split the
various files into lines so that diff produced useful output.)

Any advice?  Is it possible to determine what LO is changing?

Best regards,

David Gast

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