Changed reading strategy, uses interop instead of EPPlus

WinFormDi.BLI/IExcel.cs

@@ -0,0 +1,12 @@
+namespace WinFormDiApp.BLR
+{
+    public interface IExcel
+    {
+        int Columns { get; set; }
+        string DataType { get; set; }
+        int Rows { get; set; }
+
+        void Dispose();
+        string ReadCell(int i, int j);
+    }
+}