// 조건부서식 및 General Cell Type 서식 정의
FarPoint.Win.Spread.UnaryComparisonConditionalFormattingRule unary = new FarPoint.Win.Spread.UnaryComparisonConditionalFormattingRule(FarPoint.Win.Spread.UnaryComparisonOperator.LessThanOrEqualTo, 0.001D, false);
FarPoint.Win.Spread.Model.GeneralFormatter formatter = new FarPoint.Win.Spread.Model.GeneralFormatter("0.001<", false);
unary.Formatter = formatter;

// 첫번째 컬럼에 조건부서식 적용
fpSpread1.Sheets[0].SetConditionalFormatting(0, 0, fpSpread1.Sheets[0].RowCount, 1, false, unary);