Excel 2007 throws "this action is valid for the products which are currently installed" while i try to open .txt file format.

Question

Hello,
We have Windows 2008 r2 TS, on which we have MS office 2007 Standard installed. There are almost 50 users on this particular machine.
The problem is we get an error message when we try to open a .txt file in Excel (Right click on .txt file--> Open with --> Excel). Error message is as follows  "this action is valid for the products which are currently installed".
Previously this was faced by all users so we completely reinstalled it, which worked, except for 1 user.  Currently i have recreated the profile for that particular user but that also didn't helped.
A drag-drop approach works but user don't want it that way.  
Now am clueless in terms of where should i look into. Any help would really be helpful.
Thanks,
Amol S

Answer 1

Hi Amol S,
As per the description, I understand that you are trying to register .dll files in your computer now.
I suggest you to go through the following article to know more about registering .dll file.
Refer to the Link:
https://support2.microsoft.com/kb/844592?wa=wsignin1.0
Unregister or Register DLL or OCX files:
The Regsvr32 tool is a command-line utility that can be used for registering and un-registering OLE controls like DLL and ActiveX (OCX) controls in the Windows operating system. If you find
that some of your Windows functions are note working properly, you may need to register your
dll files.
Register dll file
To register a dll or
ocx file, open a command prompt windows as an administrator, type the following and hit Enter:
regsvr32 “path & filename of dllor
ocx
Unregister dll file
To un-register a dll or
ocx file, open a command prompt windows as an administrator, type the following and hit Enter:
regsvr32 /u “path & filename of dllor
ocx“
Note: This will register or unregister the
dll file.
Hope this information is helpful. Please do let us know if you need further assistance, I’ll be glad to assist you.
Regard,