Gendov

After some search in the Internet I finally found the solution:

Click "start" - the button down left to your screen Select "run" and type "regedit".
Click OK. The Registry Editor opens in a window.

In the registry editor locate the following: HKEY, LOCALMACHINE, SOFTWARE, MICROSOFT, OFFICE, EXCEL, ADDINS, BtOFFICEAddin.BtOFFICEIntegration.1

Under label "Name" there should be a line: "Lodbehavior". Now in the same line under "Type" there should be REG_DWORD" and under "Data" there should be "0x0000003 (3)" or something similar as far as the last digit is concerned (in this case 3).

Behold, you are close to the solution... Change the last digit AND the one in brackets (in my case 3) to read 0! In my case under "Data" now reads "0x0000000 (0)".

That's it!!!!!!!!!!!!!!! Close the registry editor and restart the computer.

Your Excel now is working perfectly!


Enjoy

Actually the Microsoft support was close to the solution. They gave me advise to open menu>tools>add-ins and to disable Blue tooth add-in (or some thing like this, do not remember exactly) But in the Add-ins list BT add-in was not available. From the solution is clear visible that registry entries for bt add-in exist even same is not in the list. And it was really there. After applying the above solution Excel is working fine.