ExcelApplication xla = new ExcelApplication();
FileStream fStrm = new FileStream(@"C:\Sales\2003\June.xlsxlsx", FileMode.Open);
Workbook wb = xla.Open(fStrm);
Code Block
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Dim xla As New ExcelApplication()
Dim fStrm As FileStream = New FileStream("C:\Sales\2003\June.xlsxlsx", FileMode.Open)
Dim wb As Workbook = xla.Open(fStrm)