Hello,

I have Windows 2000 SP4 running Office 2000 SP3.  I installed the latest 
2007 office compatibility pack (incudes SP1 and SP2), however I am still 
unable to open Office 2007 files, specifically .xlsx and .docx.  I have tried 
repairing and reinstalling Office.  I have downloaded and installed all the 
Microsoft Security updates and Office 2000 Updates.  I even uninstalled and 
reinstalled the compatibility pack.  Still no luck.  I get the following 
error when opening a Word 2007 doc.  "There was an error opening the file".  
Excel just says the file is an unrecognizable format. 

Is there a registry setting I need to change?  Any help would be 
appreciated.  Thanks...

We have the same setup on some of our computers.  Windows 2000 SP4 running 
Office 2000 SP3 and getting the same error.  Users were able to open 
documents fine until end of April.  Now they can't seem to open any .docx 
files.  Didn't know if it could be related to windows updates for April so 
removed all of them rebooted and still had the issue.  Tried removing 
compatibility pack and viewer, rebooted then reinstalled, no good.  Tried 
removing Office, compatibility pack, etc. and try reinstalling.  We are 
stumped also.  Trying to figure out what could have changed to cause this.  
Hopefully someone has an answer. 

"badger1" wrote:

> Hello,
> 
> I have Windows 2000 SP4 running Office 2000 SP3.  I installed the latest 
> 2007 office compatibility pack (incudes SP1 and SP2), however I am still 
> unable to open Office 2007 files, specifically .xlsx and .docx.  I have tried 
> repairing and reinstalling Office.  I have downloaded and installed all the 
> Microsoft Security updates and Office 2000 Updates.  I even uninstalled and 
> reinstalled the compatibility pack.  Still no luck.  I get the following 
> error when opening a Word 2007 doc.  "There was an error opening the file".  
> Excel just says the file is an unrecognizable format. 
> 
> Is there a registry setting I need to change?  Any help would be 
> appreciated.  Thanks...