diff --git a/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/Excel/XLWorkbook_Save.cs
index 172a843..acf1831 100644
--- a/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -3921,7 +3921,7 @@
                                 if (!XLHelper.IsNullOrWhiteSpace(opCell.InnerText))
                                 {
                                     var cellValue = new CellValue();
-                                    cellValue.Text = Double.Parse(opCell.InnerText, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture);
+                                    cellValue.Text = Double.Parse(opCell.InnerText, XLHelper.NumberStyle, XLHelper.ParseCulture).ToString(CultureInfo.InvariantCulture);
                                     cell.CellValue = cellValue;
                                 }
                             }