Hi,I can't get my head around this specific error. If i start the vi as is I reieve no error however when I add a new cell that I would like the vi to read and return the value I get this error "Error -2146777998 Unkown System" However, if I undo all the changes that I did in order to get the a second cell to be read I still recieve the error. I have to close labview start it again and then it will give me a value. I have attached the vi I hope someone can help me with this I have gone to excel board but I was told that I posted in the wrong section so I am posting here.Thanks.

LabVIEW

In a similar way by using ActiveX. You will find lots of examples as well as a toolkit over at the Excel thread.

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