Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Interop.Excel.Range'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{00020846-0000-0000-C000-000000000046}' failed due to the following error: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA).
The remote procedure call failed. (Exception from HRESULT: 0x800706BE)
var
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