Can't open xlsx files

Seagate Barracuda 7200.10 250gb sata/300...
March 15, 2010 at 10:44:22
Specs: Windows XP

I have a user that runs Windows XP SP3 with Office 2007 installed. Somehow he can't open any files with .xlsx extentions (as attachements in Outlook or after he saves them to the disk) which is already quite weird... When I go to Folder Options / File Types - there is no program associated with this extentions and I'm not able to add it - every time I browse to where EXCEL executable is located and click Open, Excel won't appear in the list of the programs to choose from... so i can't add it. Ridiculously, when I login as a different user - everything works - i tried 3 different user accounts. I added the problematic user account to the admins group - didn't help. I uninstalled Office, did the registry cleanup, run CCCleaner, and installed Office from scratch a couple of times - still the same problem. Looks like this issue is related to a particular user only... Any input will be greatly appreciated!


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March 15, 2010 at 13:51:01
Have you tried running diagnostics?

Click on the Start button
Open the Programs menu
Go to Microsoft Office folder
Go to Microsoft Office Tools folder
Click Microsoft Office Diagnostics
Click Run Diagnostics


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March 16, 2010 at 05:26:40

Near the bottom you will see the /regserver switch.
Follow the instructions and it should re-register the file types against Excel.


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March 16, 2010 at 08:36:22
Thank you! It seems like we had it resolved.

The Diagnostics tool didn't find a single issue with the Office. The solution was very simple - deleting XLSX extention from the File Types list and re-creating it finally allowed me to associate EXCEL.EXE with it and it worked after that.
I run "/unregserver" and "/regserver" commands anyway just to ensure that all registry keys are intact after all the troubleshooting.
Thank you so much for your input!!!!


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