diff --git a/ClosedXML/Excel/XLWorkbook_Load.cs b/ClosedXML/Excel/XLWorkbook_Load.cs
index 3d3386b..f2080c5 100644
--- a/ClosedXML/Excel/XLWorkbook_Load.cs
+++ b/ClosedXML/Excel/XLWorkbook_Load.cs
@@ -1440,14 +1440,11 @@
             if (fontColor.HasValue)
                 fontBase.FontColor = fontColor;
 
-            var fontFamilyNumbering = fontSource.Elements<DocumentFormat.OpenXml.Spreadsheet.FontFamily>().FirstOrDefault();
+            var fontFamilyNumbering =
+                fontSource.Elements<DocumentFormat.OpenXml.Spreadsheet.FontFamily>().FirstOrDefault();
             if (fontFamilyNumbering != null && fontFamilyNumbering.Val != null)
-                fontBase.FontFamilyNumbering = (XLFontFamilyNumberingValues)Int32.Parse(fontFamilyNumbering.Val.ToString());
-
-            var fontCharSet = fontSource.Elements<DocumentFormat.OpenXml.Spreadsheet.FontCharSet>().FirstOrDefault();
-            if (fontCharSet != null && fontCharSet.Val != null)
-                fontBase.FontCharSet = (XLFontCharSet)Int32.Parse(fontCharSet.Val.ToString());
-
+                fontBase.FontFamilyNumbering =
+                    (XLFontFamilyNumberingValues)Int32.Parse(fontFamilyNumbering.Val.ToString());
             var runFont = fontSource.Elements<RunFont>().FirstOrDefault();
             if (runFont != null)
             {
@@ -1842,7 +1839,7 @@
                 {
                     var conditionalFormat = new XLConditionalFormat(ws.Range(sor.Value));
 
-                    conditionalFormat.StopIfTrueInternal = fr.StopIfTrue;
+                    conditionalFormat.StopIfTrueInternal = OpenXmlHelper.GetBooleanValueAsBool(fr.StopIfTrue, false);
 
                     if (fr.FormatId != null)
                     {
diff --git a/ClosedXML_Examples/ConditionalFormatting/ConditionalFormatting.cs b/ClosedXML_Examples/ConditionalFormatting/ConditionalFormatting.cs
index a90c1b1..769afa2 100644
--- a/ClosedXML_Examples/ConditionalFormatting/ConditionalFormatting.cs
+++ b/ClosedXML_Examples/ConditionalFormatting/ConditionalFormatting.cs
@@ -676,7 +676,7 @@
                 .CellBelow().SetValue(2)
                 .CellBelow().SetValue(3);
 
-            ws.RangeUsed().AddConditionalFormat().StopIfTrue(true).WhenGreaterThan(5);
+            ws.RangeUsed().AddConditionalFormat().StopIfTrue().WhenGreaterThan(5);
 
 
             ws.RangeUsed().AddConditionalFormat().IconSet(XLIconSetStyle.ThreeTrafficLights2, true, true)