Fix error "Offset and length were out of bounds for the array or count is greater .." when disposing ByteArrayInputStream.

Author: claudiamurialdo

dotnet/src/dotnetframework/GxOffice/poi/xssf/ExcelSpreadsheet.cs

@@ -73,7 +73,7 @@ private bool SaveAsImpl(string fileName)
 				ByteArrayOutputStream fs = new ByteArrayOutputStream();
 				_workbook.Write(fs);
 
-				ByteArrayInputStream inStream = new ByteArrayInputStream(fs.ToByteArray());
+				MemoryStream inStream = new MemoryStream(fs.ToByteArray());
 				fs.Close();
 				_workbook.Close();
 

dotnet/test/DotNetCoreUnitTest/Excel/ExcelPoiTest.cs

@@ -38,7 +38,7 @@ public void TestCellStyle1()
 			excel.SetColumnWidth(1, 100);
 			excel.GetCells(2, 1, 1, 5).NumericValue = 123.456M;
 			ExcelStyle newCellStyle = new ExcelStyle();
-			newCellStyle.			CellFont.			Bold = true;
+			newCellStyle.CellFont.Bold = true;
 			excel.GetCells(2, 1, 1, 5).SetCellStyle(newCellStyle);
 
 			bool ok = excel.Save();