OFFICE 2010 can not open EXCEL files by double click, only File Open....

Question

Hi:
I am using WIN7 ultimate 64 bit and excel 2010 (office 2010 Pro plus).
I can not open any excel file(.xls and .xlsx) with a double click on the file. if I double click on the file, the application launches and excel starts, but no file is loaded and no error message, I have to manually go file open and select the file and
then it opens correctly...
I have tried every solutions I can find from internet, but none worked....
1.Repair the office 2010 instalation.------doesn't work.
2.Right-click the file >>Select "Open With" and select [Excel 2010]>> Check always use this program. ------doesn't work.
3.Options>>Advanced>>General section>>unchecked "Ignore Other Applications that use Dynamic Data Exchange (DDE)".------doesn't work.
4.Run>> input "Excel /regserver". ------doesn't work.
5.Create new user profiles.------doesn't work.
6.Delete EXCEL folder under "HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\".------doesn't work.
Is there any other solutions can fix this problem? Any help are appreciated. 
Yong.

Answer 1

Hello Yong,
Thanks for posting in our forum. Seems you've already tried lots of things, and I can see that those are all steps that reportedly have worked for others.
Here is one more thing that you might want to have a try:
Open Registry Editor
Go to the registry key HKEY_CLASSES_ROOT\Excel.Sheet.12\shell\Open\command
Highlight the key, select the (Default), select "Modify..."
from the pull-down menu and then enter the value below: "C:\Program Files\Microsoft Office 15\Root\Office15\EXCEL.EXE"
"%1" (include the quote marks)
Then OK your way out
Please have a try and feel free to post back.
Regards,
Ethan Hua
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.