Old format or invalid type library. (Exception from HRESULT: 0x80028018 (TYPE_E_INVDATAREAD)) [duplicate]

Answer 1

I had the same problem and I solved it:
Look at this:
Microsoft.Office.Interop.Excel doesn't work on 64 bit

Answer 2

Consider:

System.Threading.Thread.CurrentThread.CurrentCulture = oldCI;

Delete this line or move to under the line that closes the Excel application.

It works for me.

Answer 3

Your code works fine on Office 2007 + VS 2010. What versions are you using? Mayby you have choosen wrong version of interop refernece: Office 2007 = 12.0.0.0, Office 2010 = 14.0.0.0

You can look at http://support.microsoft.com/default.aspx?scid=kb;en-us;320369 it might solve your problem.

Answer 4

You should type this line:

System.Threading.Thread.CurrentThread.CurrentCulture = oldCI;

Do this after you close your Excel application; before adding WorkBook you should not use this line.

Answer 5

The real reason is the regional settings configured for the user that launches the thread. It is documented as a bug.

http://support.microsoft.com/default.aspx?scid=kb;en-us;320369