.XLSX unreadable contentExcel has found unreadable content in <filename.xlsx>. Do you want to recover the contents of this workbook?"

Hi,

I am presuming that you have applied all the (Windows Update) patches/fixes appropriate to your operating system/Microsoft Office product.  If that is not the case, please try that.

Have you tried opening on a "32-bit machine" & saving either as a different filename, or in a different file format (for example, MS-Excel 2003 ".xls" format) & then trying to open this new workbook on your Windows 7/64-bit machine?

Alternatively, try downloading "OpenOffice" [ http://www.openoffice.org/download/index.html ], or any other free/open source software that supports the ".xlsx" format.  Once loaded you can then re-save to either another ".xlsx" format file or to a different file format for re-loading back on your Windows 7/64-bit machine.

BFN,

fp.

Hi,

Thanks for your response!

We have indeed applied all the windows updates patches/fixes. Running SP3 at the moment. Also searched for hotfixes, the relevant hotfixes are all outdated/absolete

The file seems to be working on all 32 bit windows machines.
 
At the moment we are looking for a more practical and permanent solution.
The OpenOffice suggestion isn't that practical for us.

Does anybody know other methodes to debug this situation?
Thanks in advance

With kind regards,
Kelvin

At the moment we are looking for a more practical and permanent solution.
The OpenOffice suggestion isn't that practical for us.

I wasn't suggesting this was a permanent solution; just hoping to establish if the issue is with your 64-bit environment or the physical workbook you are trying to open.

If the file is corrupted, or faulty in some other way, then it may be able to be reconstructed from your 32-bit environment(s) or from re-saving via OpenOffice.

This may be a "one-off" issue localised to this single workbook.
It may be an issue with all workbooks saved/used on your 64-bit machine.

I could not tell that from the information you provided.

Hi, Kelvin.

(1) What version of Excel are the 32-bit PC's running?
(2) Please post a (redacted) copy of the file here.

Thanks,
Brian.

It's beginning to look like we are hunting ghosts  :-|

The persons who had problems with the files are not experiencing those problems at the moment anymore.

we think the problems lies in the computers and have tried to replicate it, but haven't been able to do so succesfully. my next step would to let the user login to a newly set up virtual machine with windows 7 x64 and the latest office if it happens again on their own computer.

for the moment we are waiting for compliants again so we can investigate further, but we are on a dead track now.

The only solution the the problem