public void ReadAndWrite()
{
var xl = new TestFileContext("test.xlsx");
xl.SerializeToFile("test-out.xlsx");
xl.SerializeToStream();
xl.SerializeToExcelPackage();
var xl2 = new TestFileContext("test-out.xlsx");
Assert.AreEqual(xl.GetSheet <TestFileContext.Sheet1>().Count, xl2.GetSheet <TestFileContext.Sheet1>().Count);
Assert.AreEqual(xl.GetSheet <Class1>().Count, xl2.GetSheet <Class1>().Count);
}