C# (CSharp) OfficeOpenXml.ConditionalFormatting ExcelConditionalFormattingHelper.GetAttributeBoolNullable - 2 examples found. These are the top rated real world C# (CSharp) examples of OfficeOpenXml.ConditionalFormatting.ExcelConditionalFormattingHelper.GetAttributeBoolNullable extracted from open source projects. You can rate examples to help us improve the quality of examples.