This fixed incorrect formula calculation exception expected result

- Simplify and remove duplicate code for optimization
- Update documentation comments with typo fix
- Handle error return to save the workbook
- Add file path length limitation details in the error message

calc.go

@@ -380,17 +380,17 @@ type formulaFuncs struct {
 //	BESSELJ
 //	BESSELK
 //	BESSELY
-//	BETADIST
 //	BETA.DIST
-//	BETAINV
 //	BETA.INV
+//	BETADIST
+//	BETAINV
 //	BIN2DEC
 //	BIN2HEX
 //	BIN2OCT
-//	BINOMDIST
 //	BINOM.DIST
 //	BINOM.DIST.RANGE
 //	BINOM.INV
+//	BINOMDIST
 //	BITAND
 //	BITLSHIFT
 //	BITOR
@@ -402,12 +402,12 @@ type formulaFuncs struct {
 //	CHAR
 //	CHIDIST
 //	CHIINV
-//	CHITEST
 //	CHISQ.DIST
 //	CHISQ.DIST.RT
 //	CHISQ.INV
 //	CHISQ.INV.RT
 //	CHISQ.TEST
+//	CHITEST
 //	CHOOSE
 //	CLEAN
 //	CODE
@@ -477,8 +477,8 @@ type formulaFuncs struct {
 //	DURATION
 //	DVAR
 //	DVARP
-//	EFFECT
 //	EDATE
+//	EFFECT
 //	ENCODEURL
 //	EOMONTH
 //	ERF
@@ -492,16 +492,17 @@ type formulaFuncs struct {
 //	EXP
 //	EXPON.DIST
 //	EXPONDIST
+//	F.DIST
+//	F.DIST.RT
+//	F.INV
+//	F.INV.RT
+//	F.TEST
 //	FACT
 //	FACTDOUBLE
 //	FALSE
-//	F.DIST
-//	F.DIST.RT
 //	FDIST
 //	FIND
 //	FINDB
-//	F.INV
-//	F.INV.RT
 //	FINV
 //	FISHER
 //	FISHERINV
@@ -510,14 +511,13 @@ type formulaFuncs struct {
 //	FLOOR.MATH
 //	FLOOR.PRECISE
 //	FORMULATEXT
-//	F.TEST
 //	FTEST
 //	FV
 //	FVSCHEDULE
 //	GAMMA
 //	GAMMA.DIST
-//	GAMMADIST
 //	GAMMA.INV
+//	GAMMADIST
 //	GAMMAINV
 //	GAMMALN
 //	GAMMALN.PRECISE
@@ -579,12 +579,12 @@ type formulaFuncs struct {
 //	ISNA
 //	ISNONTEXT
 //	ISNUMBER
-//	ISODD
-//	ISREF
-//	ISTEXT
 //	ISO.CEILING
+//	ISODD
 //	ISOWEEKNUM
 //	ISPMT
+//	ISREF
+//	ISTEXT
 //	KURT
 //	LARGE
 //	LCM
@@ -597,8 +597,8 @@ type formulaFuncs struct {
 //	LOG10
 //	LOGINV
 //	LOGNORM.DIST
-//	LOGNORMDIST
 //	LOGNORM.INV
+//	LOGNORMDIST
 //	LOOKUP
 //	LOWER
 //	MATCH
@@ -633,12 +633,12 @@ type formulaFuncs struct {
 //	NETWORKDAYS.INTL
 //	NOMINAL
 //	NORM.DIST
-//	NORMDIST
 //	NORM.INV
-//	NORMINV
 //	NORM.S.DIST
-//	NORMSDIST
 //	NORM.S.INV
+//	NORMDIST
+//	NORMINV
+//	NORMSDIST
 //	NORMSINV
 //	NOT
 //	NOW
@@ -652,19 +652,19 @@ type formulaFuncs struct {
 //	OR
 //	PDURATION
 //	PEARSON
+//	PERCENTILE
 //	PERCENTILE.EXC
 //	PERCENTILE.INC
-//	PERCENTILE
+//	PERCENTRANK
 //	PERCENTRANK.EXC
 //	PERCENTRANK.INC
-//	PERCENTRANK
 //	PERMUT
 //	PERMUTATIONA
 //	PHI
 //	PI
 //	PMT
-//	POISSON.DIST
 //	POISSON
+//	POISSON.DIST
 //	POWER
 //	PPMT
 //	PRICE
@@ -734,20 +734,21 @@ type formulaFuncs struct {
 //	SWITCH
 //	SYD
 //	T
+//	T.DIST
+//	T.DIST.2T
+//	T.DIST.RT
+//	T.INV
+//	T.INV.2T
+//	T.TEST
 //	TAN
 //	TANH
 //	TBILLEQ
 //	TBILLPRICE
 //	TBILLYIELD
-//	T.DIST
-//	T.DIST.2T
-//	T.DIST.RT
 //	TDIST
 //	TEXTJOIN
 //	TIME
 //	TIMEVALUE
-//	T.INV
-//	T.INV.2T
 //	TINV
 //	TODAY
 //	TRANSPOSE
@@ -756,7 +757,6 @@ type formulaFuncs struct {
 //	TRIMMEAN
 //	TRUE
 //	TRUNC
-//	T.TEST
 //	TTEST
 //	TYPE
 //	UNICHAR
@@ -14162,17 +14162,23 @@ func (fn *formulaFuncs) COLUMN(argsList *list.List) formulaArg {
 	return newNumberFormulaArg(float64(col))
 }
 
-// calcColumnsMinMax calculation min and max value for given formula arguments
+// calcColsRowsMinMax calculation min and max value for given formula arguments
-// sequence of the formula function COLUMNS.
+// sequence of the formula functions COLUMNS and ROWS.
-func calcColumnsMinMax(argsList *list.List) (min, max int) {
+func calcColsRowsMinMax(cols bool, argsList *list.List) (min, max int) {
+	getVal := func(cols bool, cell cellRef) int {
+		if cols {
+			return cell.Col
+		}
+		return cell.Row
+	}
 	if argsList.Front().Value.(formulaArg).cellRanges != nil && argsList.Front().Value.(formulaArg).cellRanges.Len() > 0 {
 		crs := argsList.Front().Value.(formulaArg).cellRanges
 		for cr := crs.Front(); cr != nil; cr = cr.Next() {
 			if min == 0 {
-				min = cr.Value.(cellRange).From.Col
+				min = getVal(cols, cr.Value.(cellRange).From)
 			}
-			if max < cr.Value.(cellRange).To.Col {
+			if max < getVal(cols, cr.Value.(cellRange).To) {
-				max = cr.Value.(cellRange).To.Col
+				max = getVal(cols, cr.Value.(cellRange).To)
 			}
 		}
 	}
@@ -14180,10 +14186,10 @@ func calcColumnsMinMax(argsList *list.List) (min, max int) {
 		cr := argsList.Front().Value.(formulaArg).cellRefs
 		for refs := cr.Front(); refs != nil; refs = refs.Next() {
 			if min == 0 {
-				min = refs.Value.(cellRef).Col
+				min = getVal(cols, refs.Value.(cellRef))
 			}
-			if max < refs.Value.(cellRef).Col {
+			if max < getVal(cols, refs.Value.(cellRef)) {
-				max = refs.Value.(cellRef).Col
+				max = getVal(cols, refs.Value.(cellRef))
 			}
 		}
 	}
@@ -14198,7 +14204,7 @@ func (fn *formulaFuncs) COLUMNS(argsList *list.List) formulaArg {
 	if argsList.Len() != 1 {
 		return newErrorFormulaArg(formulaErrorVALUE, "COLUMNS requires 1 argument")
 	}
-	min, max := calcColumnsMinMax(argsList)
+	min, max := calcColsRowsMinMax(true, argsList)
 	if max == MaxColumns {
 		return newNumberFormulaArg(float64(MaxColumns))
 	}
@@ -14411,8 +14417,8 @@ func (fn *formulaFuncs) TRANSPOSE(argsList *list.List) formulaArg {
 		return newErrorFormulaArg(formulaErrorVALUE, "TRANSPOSE requires 1 argument")
 	}
 	args := argsList.Back().Value.(formulaArg).ToList()
-	rmin, rmax := calcRowsMinMax(argsList)
+	rmin, rmax := calcColsRowsMinMax(false, argsList)
-	cmin, cmax := calcColumnsMinMax(argsList)
+	cmin, cmax := calcColsRowsMinMax(true, argsList)
 	cols, rows := cmax-cmin+1, rmax-rmin+1
 	src := make([][]formulaArg, 0)
 	for i := 0; i < len(args); i += cols {
@@ -14931,34 +14937,6 @@ func (fn *formulaFuncs) ROW(argsList *list.List) formulaArg {
 	return newNumberFormulaArg(float64(row))
 }
 
-// calcRowsMinMax calculation min and max value for given formula arguments
-// sequence of the formula function ROWS.
-func calcRowsMinMax(argsList *list.List) (min, max int) {
-	if argsList.Front().Value.(formulaArg).cellRanges != nil && argsList.Front().Value.(formulaArg).cellRanges.Len() > 0 {
-		crs := argsList.Front().Value.(formulaArg).cellRanges
-		for cr := crs.Front(); cr != nil; cr = cr.Next() {
-			if min == 0 {
-				min = cr.Value.(cellRange).From.Row
-			}
-			if max < cr.Value.(cellRange).To.Row {
-				max = cr.Value.(cellRange).To.Row
-			}
-		}
-	}
-	if argsList.Front().Value.(formulaArg).cellRefs != nil && argsList.Front().Value.(formulaArg).cellRefs.Len() > 0 {
-		cr := argsList.Front().Value.(formulaArg).cellRefs
-		for refs := cr.Front(); refs != nil; refs = refs.Next() {
-			if min == 0 {
-				min = refs.Value.(cellRef).Row
-			}
-			if max < refs.Value.(cellRef).Row {
-				max = refs.Value.(cellRef).Row
-			}
-		}
-	}
-	return
-}
-
 // ROWS function takes an Excel range and returns the number of rows that are
 // contained within the range. The syntax of the function is:
 //
@@ -14967,7 +14945,7 @@ func (fn *formulaFuncs) ROWS(argsList *list.List) formulaArg {
 	if argsList.Len() != 1 {
 		return newErrorFormulaArg(formulaErrorVALUE, "ROWS requires 1 argument")
 	}
-	min, max := calcRowsMinMax(argsList)
+	min, max := calcColsRowsMinMax(false, argsList)
 	if max == TotalRows {
 		return newStringFormulaArg(strconv.Itoa(TotalRows))
 	}
@@ -15649,35 +15627,35 @@ func (fn *formulaFuncs) prepareDataValueArgs(n int, argsList *list.List) formula
 	return newListFormulaArg(dataValues)
 }
 
-// DISC function calculates the Discount Rate for a security. The syntax of
+// discIntrate is an implementation of the formula functions DISC and INTRATE.
-// the function is:
+func (fn *formulaFuncs) discIntrate(name string, argsList *list.List) formulaArg {
-//
-//	DISC(settlement,maturity,pr,redemption,[basis])
-func (fn *formulaFuncs) DISC(argsList *list.List) formulaArg {
 	if argsList.Len() != 4 && argsList.Len() != 5 {
-		return newErrorFormulaArg(formulaErrorVALUE, "DISC requires 4 or 5 arguments")
+		return newErrorFormulaArg(formulaErrorVALUE, fmt.Sprintf("%s requires 4 or 5 arguments", name))
 	}
 	args := fn.prepareDataValueArgs(2, argsList)
 	if args.Type != ArgList {
 		return args
 	}
-	settlement, maturity := args.List[0], args.List[1]
+	settlement, maturity, argName := args.List[0], args.List[1], "pr"
 	if maturity.Number <= settlement.Number {
-		return newErrorFormulaArg(formulaErrorNUM, "DISC requires maturity > settlement")
+		return newErrorFormulaArg(formulaErrorNUM, fmt.Sprintf("%s requires maturity > settlement", name))
 	}
-	pr := argsList.Front().Next().Next().Value.(formulaArg).ToNumber()
+	prInvestment := argsList.Front().Next().Next().Value.(formulaArg).ToNumber()
-	if pr.Type != ArgNumber {
+	if prInvestment.Type != ArgNumber {
 		return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
 	}
-	if pr.Number <= 0 {
+	if prInvestment.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "DISC requires pr > 0")
+		if name == "INTRATE" {
+			argName = "investment"
+		}
+		return newErrorFormulaArg(formulaErrorNUM, fmt.Sprintf("%s requires %s > 0", name, argName))
 	}
 	redemption := argsList.Front().Next().Next().Next().Value.(formulaArg).ToNumber()
 	if redemption.Type != ArgNumber {
 		return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
 	}
 	if redemption.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "DISC requires redemption > 0")
+		return newErrorFormulaArg(formulaErrorNUM, fmt.Sprintf("%s requires redemption > 0", name))
 	}
 	basis := newNumberFormulaArg(0)
 	if argsList.Len() == 5 {
@@ -15689,7 +15667,18 @@ func (fn *formulaFuncs) DISC(argsList *list.List) formulaArg {
 	if frac.Type != ArgNumber {
 		return frac
 	}
-	return newNumberFormulaArg((redemption.Number - pr.Number) / redemption.Number / frac.Number)
+	if name == "INTRATE" {
+		return newNumberFormulaArg((redemption.Number - prInvestment.Number) / prInvestment.Number / frac.Number)
+	}
+	return newNumberFormulaArg((redemption.Number - prInvestment.Number) / redemption.Number / frac.Number)
+}
+
+// DISC function calculates the Discount Rate for a security. The syntax of
+// the function is:
+//
+//	DISC(settlement,maturity,pr,redemption,[basis])
+func (fn *formulaFuncs) DISC(argsList *list.List) formulaArg {
+	return fn.discIntrate("DISC", argsList)
 }
 
 // DOLLARDE function converts a dollar value in fractional notation, into a
@@ -16007,42 +15996,7 @@ func (fn *formulaFuncs) FVSCHEDULE(argsList *list.List) formulaArg {
 //
 //	INTRATE(settlement,maturity,investment,redemption,[basis])
 func (fn *formulaFuncs) INTRATE(argsList *list.List) formulaArg {
-	if argsList.Len() != 4 && argsList.Len() != 5 {
+	return fn.discIntrate("INTRATE", argsList)
-		return newErrorFormulaArg(formulaErrorVALUE, "INTRATE requires 4 or 5 arguments")
-	}
-	args := fn.prepareDataValueArgs(2, argsList)
-	if args.Type != ArgList {
-		return args
-	}
-	settlement, maturity := args.List[0], args.List[1]
-	if maturity.Number <= settlement.Number {
-		return newErrorFormulaArg(formulaErrorNUM, "INTRATE requires maturity > settlement")
-	}
-	investment := argsList.Front().Next().Next().Value.(formulaArg).ToNumber()
-	if investment.Type != ArgNumber {
-		return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
-	}
-	if investment.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "INTRATE requires investment > 0")
-	}
-	redemption := argsList.Front().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if redemption.Type != ArgNumber {
-		return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
-	}
-	if redemption.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "INTRATE requires redemption > 0")
-	}
-	basis := newNumberFormulaArg(0)
-	if argsList.Len() == 5 {
-		if basis = argsList.Back().Value.(formulaArg).ToNumber(); basis.Type != ArgNumber {
-			return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
-		}
-	}
-	frac := yearFrac(settlement.Number, maturity.Number, int(basis.Number))
-	if frac.Type != ArgNumber {
-		return frac
-	}
-	return newNumberFormulaArg((redemption.Number - investment.Number) / investment.Number / frac.Number)
 }
 
 // IPMT function calculates the interest payment, during a specific period of a
@@ -16756,13 +16710,50 @@ func (fn *formulaFuncs) price(settlement, maturity, rate, yld, redemption, frequ
 	return newNumberFormulaArg(ret)
 }
 
-// PRICE function calculates the price, per $100 face value of a security that
+// checkPriceYieldArgs checking and prepare arguments for the formula functions
-// pays periodic interest. The syntax of the function is:
+// PRICE and YIELD.
-//
+func checkPriceYieldArgs(name string, rate, prYld, redemption, frequency formulaArg) formulaArg {
-//	PRICE(settlement,maturity,rate,yld,redemption,frequency,[basis])
+	if rate.Type != ArgNumber {
-func (fn *formulaFuncs) PRICE(argsList *list.List) formulaArg {
+		return rate
+	}
+	if rate.Number < 0 {
+		return newErrorFormulaArg(formulaErrorNUM, fmt.Sprintf("%s requires rate >= 0", name))
+	}
+	if prYld.Type != ArgNumber {
+		return prYld
+	}
+	if redemption.Type != ArgNumber {
+		return redemption
+	}
+	if name == "PRICE" {
+		if prYld.Number < 0 {
+			return newErrorFormulaArg(formulaErrorNUM, "PRICE requires yld >= 0")
+		}
+		if redemption.Number <= 0 {
+			return newErrorFormulaArg(formulaErrorNUM, "PRICE requires redemption > 0")
+		}
+	}
+	if name == "YIELD" {
+		if prYld.Number <= 0 {
+			return newErrorFormulaArg(formulaErrorNUM, "YIELD requires pr > 0")
+		}
+		if redemption.Number < 0 {
+			return newErrorFormulaArg(formulaErrorNUM, "YIELD requires redemption >= 0")
+		}
+	}
+	if frequency.Type != ArgNumber {
+		return frequency
+	}
+	if !validateFrequency(frequency.Number) {
+		return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
+	}
+	return newEmptyFormulaArg()
+}
+
+// priceYield is an implementation of the formula functions PRICE and YIELD.
+func (fn *formulaFuncs) priceYield(name string, argsList *list.List) formulaArg {
 	if argsList.Len() != 6 && argsList.Len() != 7 {
-		return newErrorFormulaArg(formulaErrorVALUE, "PRICE requires 6 or 7 arguments")
+		return newErrorFormulaArg(formulaErrorVALUE, fmt.Sprintf("%s requires 6 or 7 arguments", name))
 	}
 	args := fn.prepareDataValueArgs(2, argsList)
 	if args.Type != ArgList {
@@ -16770,32 +16761,11 @@ func (fn *formulaFuncs) PRICE(argsList *list.List) formulaArg {
 	}
 	settlement, maturity := args.List[0], args.List[1]
 	rate := argsList.Front().Next().Next().Value.(formulaArg).ToNumber()
-	if rate.Type != ArgNumber {
+	prYld := argsList.Front().Next().Next().Next().Value.(formulaArg).ToNumber()
-		return rate
-	}
-	if rate.Number < 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires rate >= 0")
-	}
-	yld := argsList.Front().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if yld.Type != ArgNumber {
-		return yld
-	}
-	if yld.Number < 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires yld >= 0")
-	}
 	redemption := argsList.Front().Next().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if redemption.Type != ArgNumber {
-		return redemption
-	}
-	if redemption.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires redemption > 0")
-	}
 	frequency := argsList.Front().Next().Next().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if frequency.Type != ArgNumber {
+	if arg := checkPriceYieldArgs(name, rate, prYld, redemption, frequency); arg.Type != ArgEmpty {
-		return frequency
+		return arg
-	}
-	if !validateFrequency(frequency.Number) {
-		return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
 	}
 	basis := newNumberFormulaArg(0)
 	if argsList.Len() == 7 {
@@ -16803,7 +16773,18 @@ func (fn *formulaFuncs) PRICE(argsList *list.List) formulaArg {
 			return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
 		}
 	}
-	return fn.price(settlement, maturity, rate, yld, redemption, frequency, basis)
+	if name == "PRICE" {
+		return fn.price(settlement, maturity, rate, prYld, redemption, frequency, basis)
+	}
+	return fn.yield(settlement, maturity, rate, prYld, redemption, frequency, basis)
+}
+
+// PRICE function calculates the price, per $100 face value of a security that
+// pays periodic interest. The syntax of the function is:
+//
+//	PRICE(settlement,maturity,rate,yld,redemption,frequency,[basis])
+func (fn *formulaFuncs) PRICE(argsList *list.List) formulaArg {
+	return fn.priceYield("PRICE", argsList)
 }
 
 // PRICEDISC function calculates the price, per $100 face value of a
@@ -17535,49 +17516,7 @@ func (fn *formulaFuncs) yield(settlement, maturity, rate, pr, redemption, freque
 //
 //	YIELD(settlement,maturity,rate,pr,redemption,frequency,[basis])
 func (fn *formulaFuncs) YIELD(argsList *list.List) formulaArg {
-	if argsList.Len() != 6 && argsList.Len() != 7 {
+	return fn.priceYield("YIELD", argsList)
-		return newErrorFormulaArg(formulaErrorVALUE, "YIELD requires 6 or 7 arguments")
-	}
-	args := fn.prepareDataValueArgs(2, argsList)
-	if args.Type != ArgList {
-		return args
-	}
-	settlement, maturity := args.List[0], args.List[1]
-	rate := argsList.Front().Next().Next().Value.(formulaArg).ToNumber()
-	if rate.Type != ArgNumber {
-		return rate
-	}
-	if rate.Number < 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires rate >= 0")
-	}
-	pr := argsList.Front().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if pr.Type != ArgNumber {
-		return pr
-	}
-	if pr.Number <= 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires pr > 0")
-	}
-	redemption := argsList.Front().Next().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if redemption.Type != ArgNumber {
-		return redemption
-	}
-	if redemption.Number < 0 {
-		return newErrorFormulaArg(formulaErrorNUM, "PRICE requires redemption >= 0")
-	}
-	frequency := argsList.Front().Next().Next().Next().Next().Next().Value.(formulaArg).ToNumber()
-	if frequency.Type != ArgNumber {
-		return frequency
-	}
-	if !validateFrequency(frequency.Number) {
-		return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
-	}
-	basis := newNumberFormulaArg(0)
-	if argsList.Len() == 7 {
-		if basis = argsList.Back().Value.(formulaArg).ToNumber(); basis.Type != ArgNumber {
-			return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
-		}
-	}
-	return fn.yield(settlement, maturity, rate, pr, redemption, frequency, basis)
 }
 
 // YIELDDISC function calculates the annual yield of a discounted security.

calc_test.go

@@ -4334,9 +4334,9 @@ func TestCalcCellValue(t *testing.T) {
 		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,101,100,4,\"\")": {"#NUM!", "#NUM!"},
 		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,101,100,3)":      {"#NUM!", "#NUM!"},
 		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,101,100,4,5)":    {"#NUM!", "invalid basis"},
-		"=YIELD(\"01/01/2010\",\"06/30/2015\",-1,101,100,4)":       {"#NUM!", "PRICE requires rate >= 0"},
+		"=YIELD(\"01/01/2010\",\"06/30/2015\",-1,101,100,4)":       {"#NUM!", "YIELD requires rate >= 0"},
-		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,0,100,4)":        {"#NUM!", "PRICE requires pr > 0"},
+		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,0,100,4)":        {"#NUM!", "YIELD requires pr > 0"},
-		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,101,-1,4)":       {"#NUM!", "PRICE requires redemption >= 0"},
+		"=YIELD(\"01/01/2010\",\"06/30/2015\",10%,101,-1,4)":       {"#NUM!", "YIELD requires redemption >= 0"},
 		// YIELDDISC
 		"=YIELDDISC()": {"#VALUE!", "YIELDDISC requires 4 or 5 arguments"},
 		"=YIELDDISC(\"\",\"06/30/2017\",97,100,0)":              {"#VALUE!", "#VALUE!"},

date.go

@@ -114,7 +114,7 @@ func julianDateToGregorianTime(part1, part2 float64) time.Time {
 // "Communications of the ACM" in 1968 (published in CACM, volume 11, number
 // 10, October 1968, p.657). None of those programmers seems to have found it
 // necessary to explain the constants or variable names set out by Henry F.
-// Fliegel and Thomas C. Van Flandern.  Maybe one day I'll buy that jounal and
+// Fliegel and Thomas C. Van Flandern. Maybe one day I'll buy that journal and
 // expand an explanation here - that day is not today.
 func doTheFliegelAndVanFlandernAlgorithm(jd int) (day, month, year int) {
 	l := jd + 68569
@@ -163,7 +163,7 @@ func timeFromExcelTime(excelTime float64, date1904 bool) time.Time {
 	return date.Truncate(time.Second)
 }
 
-// ExcelDateToTime converts a float-based excel date representation to a time.Time.
+// ExcelDateToTime converts a float-based Excel date representation to a time.Time.
 func ExcelDateToTime(excelDate float64, use1904Format bool) (time.Time, error) {
 	if excelDate < 0 {
 		return time.Time{}, newInvalidExcelDateError(excelDate)

errors.go

@@ -143,7 +143,7 @@ var (
 	ErrWorkbookFileFormat = errors.New("unsupported workbook file format")
 	// ErrMaxFilePathLength defined the error message on receive the file path
 	// length overflow.
-	ErrMaxFilePathLength = errors.New("file path length exceeds maximum limit")
+	ErrMaxFilePathLength = fmt.Errorf("file path length exceeds maximum limit %d characters", MaxFilePathLength)
 	// ErrUnknownEncryptMechanism defined the error message on unsupported
 	// encryption mechanism.
 	ErrUnknownEncryptMechanism = errors.New("unknown encryption mechanism")

excelize.go

@@ -60,7 +60,7 @@ type File struct {
 // the spreadsheet from non-UTF-8 encoding.
 type charsetTranscoderFn func(charset string, input io.Reader) (rdr io.Reader, err error)
 
-// Options define the options for o`pen and reading spreadsheet.
+// Options define the options for opening and reading the spreadsheet.
 //
 // MaxCalcIterations specifies the maximum iterations for iterative
 // calculation, the default value is 0.
@@ -70,7 +70,7 @@ type charsetTranscoderFn func(charset string, input io.Reader) (rdr io.Reader, e
 // RawCellValue specifies if apply the number format for the cell value or get
 // the raw value.
 //
-// UnzipSizeLimit specifies the unzip size limit in bytes on open the
+// UnzipSizeLimit specifies to unzip size limit in bytes on open the
 // spreadsheet, this value should be greater than or equal to
 // UnzipXMLSizeLimit, the default size limit is 16GB.
 //
@@ -106,7 +106,7 @@ type Options struct {
 	CultureInfo       CultureName
 }
 
-// OpenFile take the name of an spreadsheet file and returns a populated
+// OpenFile take the name of a spreadsheet file and returns a populated
 // spreadsheet file struct for it. For example, open spreadsheet with
 // password protection:
 //

hsl.go

@@ -60,7 +60,7 @@ func hslModel(c color.Color) color.Color {
 	return HSL{h, s, l}
 }
 
-// RGBToHSL converts an RGB triple to a HSL triple.
+// RGBToHSL converts an RGB triple to an HSL triple.
 func RGBToHSL(r, g, b uint8) (h, s, l float64) {
 	fR := float64(r) / 255
 	fG := float64(g) / 255
@@ -95,7 +95,7 @@ func RGBToHSL(r, g, b uint8) (h, s, l float64) {
 	return
 }
 
-// HSLToRGB converts an HSL triple to a RGB triple.
+// HSLToRGB converts an HSL triple to an RGB triple.
 func HSLToRGB(h, s, l float64) (r, g, b uint8) {
 	var fR, fG, fB float64
 	if s == 0 {

numfmt.go

@@ -1183,9 +1183,9 @@ func (nf *numberFormat) printNumberLiteral(text string) string {
 	if nf.usePositive {
 		result += "-"
 	}
-	for i, token := range nf.section[nf.sectionIdx].Items {
+	for _, token := range nf.section[nf.sectionIdx].Items {
 		if token.TType == nfp.TokenTypeCurrencyLanguage {
-			if err, changeNumFmtCode := nf.currencyLanguageHandler(i, token); err != nil || changeNumFmtCode {
+			if err, changeNumFmtCode := nf.currencyLanguageHandler(token); err != nil || changeNumFmtCode {
 				return nf.value
 			}
 			result += nf.currencyString
@@ -1321,7 +1321,7 @@ func (nf *numberFormat) dateTimeHandler() string {
 	nf.t, nf.hours, nf.seconds = timeFromExcelTime(nf.number, nf.date1904), false, false
 	for i, token := range nf.section[nf.sectionIdx].Items {
 		if token.TType == nfp.TokenTypeCurrencyLanguage {
-			if err, changeNumFmtCode := nf.currencyLanguageHandler(i, token); err != nil || changeNumFmtCode {
+			if err, changeNumFmtCode := nf.currencyLanguageHandler(token); err != nil || changeNumFmtCode {
 				return nf.value
 			}
 			nf.result += nf.currencyString
@@ -1392,7 +1392,7 @@ func (nf *numberFormat) positiveHandler() string {
 
 // currencyLanguageHandler will be handling currency and language types tokens
 // for a number format expression.
-func (nf *numberFormat) currencyLanguageHandler(i int, token nfp.Token) (error, bool) {
+func (nf *numberFormat) currencyLanguageHandler(token nfp.Token) (error, bool) {
 	for _, part := range token.Parts {
 		if inStrSlice(supportedTokenTypes, part.Token.TType, true) == -1 {
 			return ErrUnsupportedNumberFormat, false
@@ -1491,7 +1491,7 @@ func localMonthsNameFrench(t time.Time, abbr int) string {
 // localMonthsNameIrish returns the Irish name of the month.
 func localMonthsNameIrish(t time.Time, abbr int) string {
 	if abbr == 3 {
-		return monthNamesIrishAbbr[int(t.Month()-1)]
+		return monthNamesIrishAbbr[(t.Month() - 1)]
 	}
 	if abbr == 4 {
 		return monthNamesIrish[int(t.Month())-1]
@@ -1524,7 +1524,7 @@ func localMonthsNameGerman(t time.Time, abbr int) string {
 // localMonthsNameChinese1 returns the Chinese name of the month.
 func localMonthsNameChinese1(t time.Time, abbr int) string {
 	if abbr == 3 {
-		return monthNamesChineseAbbrPlus[int(t.Month())]
+		return monthNamesChineseAbbrPlus[t.Month()]
 	}
 	if abbr == 4 {
 		return monthNamesChinesePlus[int(t.Month())-1]
@@ -1543,7 +1543,7 @@ func localMonthsNameChinese2(t time.Time, abbr int) string {
 // localMonthsNameChinese3 returns the Chinese name of the month.
 func localMonthsNameChinese3(t time.Time, abbr int) string {
 	if abbr == 3 || abbr == 4 {
-		return monthNamesChineseAbbrPlus[int(t.Month())]
+		return monthNamesChineseAbbrPlus[t.Month()]
 	}
 	return strconv.Itoa(int(t.Month()))
 }
@@ -1551,7 +1551,7 @@ func localMonthsNameChinese3(t time.Time, abbr int) string {
 // localMonthsNameKorean returns the Korean name of the month.
 func localMonthsNameKorean(t time.Time, abbr int) string {
 	if abbr == 3 || abbr == 4 {
-		return monthNamesKoreanAbbrPlus[int(t.Month())]
+		return monthNamesKoreanAbbrPlus[t.Month()]
 	}
 	return strconv.Itoa(int(t.Month()))
 }
@@ -1562,7 +1562,7 @@ func localMonthsNameTraditionalMongolian(t time.Time, abbr int) string {
 	if abbr == 5 {
 		return "M"
 	}
-	return monthNamesTradMongolian[int(t.Month()-1)]
+	return monthNamesTradMongolian[t.Month()-1]
 }
 
 // localMonthsNameRussian returns the Russian name of the month.
@@ -1642,12 +1642,12 @@ func localMonthsNameWelsh(t time.Time, abbr int) string {
 // localMonthsNameVietnamese returns the Vietnamese name of the month.
 func localMonthsNameVietnamese(t time.Time, abbr int) string {
 	if abbr == 3 {
-		return monthNamesVietnameseAbbr3[int(t.Month()-1)]
+		return monthNamesVietnameseAbbr3[t.Month()-1]
 	}
 	if abbr == 5 {
-		return monthNamesVietnameseAbbr5[int(t.Month()-1)]
+		return monthNamesVietnameseAbbr5[t.Month()-1]
 	}
-	return monthNamesVietnamese[int(t.Month()-1)]
+	return monthNamesVietnamese[t.Month()-1]
 }
 
 // localMonthsNameWolof returns the Wolof name of the month.
@@ -1675,7 +1675,7 @@ func localMonthsNameXhosa(t time.Time, abbr int) string {
 // localMonthsNameYi returns the Yi name of the month.
 func localMonthsNameYi(t time.Time, abbr int) string {
 	if abbr == 3 || abbr == 4 {
-		return monthNamesYiSuffix[int(t.Month()-1)]
+		return monthNamesYiSuffix[t.Month()-1]
 	}
 	return string([]rune(monthNamesYi[int(t.Month())-1])[:1])
 }
@@ -1683,7 +1683,7 @@ func localMonthsNameYi(t time.Time, abbr int) string {
 // localMonthsNameZulu returns the Zulu name of the month.
 func localMonthsNameZulu(t time.Time, abbr int) string {
 	if abbr == 3 {
-		return monthNamesZuluAbbr[int(t.Month()-1)]
+		return monthNamesZuluAbbr[t.Month()-1]
 	}
 	if abbr == 4 {
 		return monthNamesZulu[int(t.Month())-1]
@@ -1737,8 +1737,8 @@ func (nf *numberFormat) dateTimesHandler(i int, token nfp.Token) {
 			return
 		}
 	}
-	nf.yearsHandler(i, token)
+	nf.yearsHandler(token)
-	nf.daysHandler(i, token)
+	nf.daysHandler(token)
 	nf.hoursHandler(i, token)
 	nf.minutesHandler(token)
 	nf.secondsHandler(token)
@@ -1746,7 +1746,7 @@ func (nf *numberFormat) dateTimesHandler(i int, token nfp.Token) {
 
 // yearsHandler will be handling years in the date and times types tokens for a
 // number format expression.
-func (nf *numberFormat) yearsHandler(i int, token nfp.Token) {
+func (nf *numberFormat) yearsHandler(token nfp.Token) {
 	years := strings.Contains(strings.ToUpper(token.TValue), "Y")
 	if years && len(token.TValue) <= 2 {
 		nf.result += strconv.Itoa(nf.t.Year())[2:]
@@ -1760,7 +1760,7 @@ func (nf *numberFormat) yearsHandler(i int, token nfp.Token) {
 
 // daysHandler will be handling days in the date and times types tokens for a
 // number format expression.
-func (nf *numberFormat) daysHandler(i int, token nfp.Token) {
+func (nf *numberFormat) daysHandler(token nfp.Token) {
 	if strings.Contains(strings.ToUpper(token.TValue), "D") {
 		switch len(token.TValue) {
 		case 1:

numfmt_test.go

@@ -1093,7 +1093,7 @@ func TestNumFmt(t *testing.T) {
 		}
 	}
 	nf := numberFormat{}
-	err, changeNumFmtCode := nf.currencyLanguageHandler(0, nfp.Token{Parts: []nfp.Part{{}}})
+	err, changeNumFmtCode := nf.currencyLanguageHandler(nfp.Token{Parts: []nfp.Part{{}}})
 	assert.Equal(t, ErrUnsupportedNumberFormat, err)
 	assert.False(t, changeNumFmtCode)
 }

rows.go

@@ -79,7 +79,7 @@ type Rows struct {
 	curRowOpts, seekRowOpts RowOpts
 }
 
-// Next will return true if find the next row element.
+// Next will return true if it finds the next row element.
 func (rows *Rows) Next() bool {
 	rows.seekRow++
 	if rows.curRow >= rows.seekRow {
@@ -297,7 +297,9 @@ func (f *File) getFromStringItem(index int) string {
 	}
 	needClose, decoder, tempFile, err := f.xmlDecoder(defaultXMLPathSharedStrings)
 	if needClose && err == nil {
-		defer tempFile.Close()
+		defer func() {
+			err = tempFile.Close()
+		}()
 	}
 	f.sharedStringItem = [][]uint{}
 	f.sharedStringTemp, _ = os.CreateTemp(os.TempDir(), "excelize-")

rows_test.go

@@ -416,6 +416,23 @@ func TestInsertRowsInEmptyFile(t *testing.T) {
 	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestInsertRowInEmptyFile.xlsx")))
 }
 
+func prepareTestBook2() (*File, error) {
+	f := NewFile()
+	for cell, val := range map[string]string{
+		"A1": "A1 Value",
+		"A2": "A2 Value",
+		"A3": "A3 Value",
+		"B1": "B1 Value",
+		"B2": "B2 Value",
+		"B3": "B3 Value",
+	} {
+		if err := f.SetCellStr("Sheet1", cell, val); err != nil {
+			return f, err
+		}
+	}
+	return f, nil
+}
+
 func TestDuplicateRowFromSingleRow(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
@@ -512,7 +529,6 @@ func TestDuplicateRowUpdateDuplicatedRows(t *testing.T) {
 func TestDuplicateRowFirstOfMultipleRows(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
-
 	cells := map[string]string{
 		"A1": "A1 Value",
 		"A2": "A2 Value",
@@ -521,18 +537,9 @@ func TestDuplicateRowFirstOfMultipleRows(t *testing.T) {
 		"B2": "B2 Value",
 		"B3": "B3 Value",
 	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
-		return f
-	}
-
 	t.Run("FirstOfMultipleRows", func(t *testing.T) {
-		f := newFileWithDefaults()
+		f, err := prepareTestBook2()
-
+		assert.NoError(t, err)
 		assert.NoError(t, f.DuplicateRow(sheet, 1))
 
 		if !assert.NoError(t, f.SaveAs(fmt.Sprintf(outFile, "FirstOfMultipleRows"))) {
@@ -635,18 +642,9 @@ func TestDuplicateRowWithLargeOffsetToMiddleOfData(t *testing.T) {
 		"B2": "B2 Value",
 		"B3": "B3 Value",
 	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
-		return f
-	}
-
 	t.Run("WithLargeOffsetToMiddleOfData", func(t *testing.T) {
-		f := newFileWithDefaults()
+		f, err := prepareTestBook2()
-
+		assert.NoError(t, err)
 		assert.NoError(t, f.DuplicateRowTo(sheet, 1, 3))
 
 		if !assert.NoError(t, f.SaveAs(fmt.Sprintf(outFile, "WithLargeOffsetToMiddleOfData"))) {
@@ -671,7 +669,6 @@ func TestDuplicateRowWithLargeOffsetToMiddleOfData(t *testing.T) {
 func TestDuplicateRowWithLargeOffsetToEmptyRows(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
-
 	cells := map[string]string{
 		"A1": "A1 Value",
 		"A2": "A2 Value",
@@ -680,18 +677,9 @@ func TestDuplicateRowWithLargeOffsetToEmptyRows(t *testing.T) {
 		"B2": "B2 Value",
 		"B3": "B3 Value",
 	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
-		return f
-	}
-
 	t.Run("WithLargeOffsetToEmptyRows", func(t *testing.T) {
-		f := newFileWithDefaults()
+		f, err := prepareTestBook2()
-
+		assert.NoError(t, err)
 		assert.NoError(t, f.DuplicateRowTo(sheet, 1, 7))
 
 		if !assert.NoError(t, f.SaveAs(fmt.Sprintf(outFile, "WithLargeOffsetToEmptyRows"))) {
@@ -716,7 +704,6 @@ func TestDuplicateRowWithLargeOffsetToEmptyRows(t *testing.T) {
 func TestDuplicateRowInsertBefore(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
-
 	cells := map[string]string{
 		"A1": "A1 Value",
 		"A2": "A2 Value",
@@ -725,18 +712,9 @@ func TestDuplicateRowInsertBefore(t *testing.T) {
 		"B2": "B2 Value",
 		"B3": "B3 Value",
 	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
-		return f
-	}
-
 	t.Run("InsertBefore", func(t *testing.T) {
-		f := newFileWithDefaults()
+		f, err := prepareTestBook2()
-
+		assert.NoError(t, err)
 		assert.NoError(t, f.DuplicateRowTo(sheet, 2, 1))
 		assert.NoError(t, f.DuplicateRowTo(sheet, 10, 4))
 
@@ -763,7 +741,6 @@ func TestDuplicateRowInsertBefore(t *testing.T) {
 func TestDuplicateRowInsertBeforeWithLargeOffset(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
-
 	cells := map[string]string{
 		"A1": "A1 Value",
 		"A2": "A2 Value",
@@ -772,18 +749,9 @@ func TestDuplicateRowInsertBeforeWithLargeOffset(t *testing.T) {
 		"B2": "B2 Value",
 		"B3": "B3 Value",
 	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
-		return f
-	}
-
 	t.Run("InsertBeforeWithLargeOffset", func(t *testing.T) {
-		f := newFileWithDefaults()
+		f, err := prepareTestBook2()
-
+		assert.NoError(t, err)
 		assert.NoError(t, f.DuplicateRowTo(sheet, 3, 1))
 
 		if !assert.NoError(t, f.SaveAs(fmt.Sprintf(outFile, "InsertBeforeWithLargeOffset"))) {
@@ -809,28 +777,11 @@ func TestDuplicateRowInsertBeforeWithLargeOffset(t *testing.T) {
 func TestDuplicateRowInsertBeforeWithMergeCells(t *testing.T) {
 	const sheet = "Sheet1"
 	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")
-
+	t.Run("InsertBeforeWithLargeOffset", func(t *testing.T) {
-	cells := map[string]string{
+		f, err := prepareTestBook2()
-		"A1": "A1 Value",
+		assert.NoError(t, err)
-		"A2": "A2 Value",
-		"A3": "A3 Value",
-		"B1": "B1 Value",
-		"B2": "B2 Value",
-		"B3": "B3 Value",
-	}
-
-	newFileWithDefaults := func() *File {
-		f := NewFile()
-		for cell, val := range cells {
-			assert.NoError(t, f.SetCellStr(sheet, cell, val))
-		}
 		assert.NoError(t, f.MergeCell(sheet, "B2", "C2"))
 		assert.NoError(t, f.MergeCell(sheet, "C6", "C8"))
-		return f
-	}
-
-	t.Run("InsertBeforeWithLargeOffset", func(t *testing.T) {
-		f := newFileWithDefaults()
 
 		assert.NoError(t, f.DuplicateRowTo(sheet, 2, 1))
 		assert.NoError(t, f.DuplicateRowTo(sheet, 1, 8))

styles.go

@@ -1309,7 +1309,7 @@ func newNumFmt(styleSheet *xlsxStyleSheet, style *Style) int {
 	if !ok {
 		fc, currency := currencyNumFmt[style.NumFmt]
 		if !currency {
-			return setLangNumFmt(styleSheet, style)
+			return setLangNumFmt(style)
 		}
 		fc = strings.ReplaceAll(fc, "0.00", dp)
 		if style.NegRed {
@@ -1375,7 +1375,7 @@ func getCustomNumFmtID(styleSheet *xlsxStyleSheet, style *Style) (customNumFmtID
 }
 
 // setLangNumFmt provides a function to set number format code with language.
-func setLangNumFmt(styleSheet *xlsxStyleSheet, style *Style) int {
+func setLangNumFmt(style *Style) int {
 	if (27 <= style.NumFmt && style.NumFmt <= 36) || (50 <= style.NumFmt && style.NumFmt <= 81) {
 		return style.NumFmt
 	}
@@ -1585,7 +1585,7 @@ func newBorders(style *Style) *xlsxBorder {
 	return &border
 }
 
-// setCellXfs provides a function to set describes all of the formatting for a
+// setCellXfs provides a function to set describes all the formatting for a
 // cell.
 func setCellXfs(style *xlsxStyleSheet, fontID, numFmtID, fillID, borderID int, applyAlignment, applyProtection bool, alignment *xlsxAlignment, protection *xlsxProtection) (int, error) {
 	var xf xlsxXf
@@ -2451,7 +2451,7 @@ func extractCondFmtDataBar(c *xlsxCfRule, extLst *xlsxExtLst) ConditionalFormatO
 			if ext.URI == ExtURIConditionalFormattings {
 				decodeCondFmts := new(decodeX14ConditionalFormattings)
 				if err := xml.Unmarshal([]byte(ext.Content), &decodeCondFmts); err == nil {
-					condFmts := []decodeX14ConditionalFormatting{}
+					var condFmts []decodeX14ConditionalFormatting
 					if err = xml.Unmarshal([]byte(decodeCondFmts.Content), &condFmts); err == nil {
 						extractDataBarRule(condFmts)
 					}

table.go

@@ -320,7 +320,7 @@ func (f *File) addTable(sheet, tableXML string, x1, y1, x2, y2, i int, opts *Tab
 //	x == *b      // ends with b
 //	x != *b      // doesn't end with b
 //	x == *b*     // contains b
-//	x != *b*     // doesn't contains b
+//	x != *b*     // doesn't contain b
 //
 // You can also use '*' to match any character or number and '?' to match any
 // single character or number. No other regular expression quantifier is
@@ -538,7 +538,7 @@ func (f *File) parseFilterTokens(expression string, tokens []string) ([]int, str
 	}
 	token := tokens[2]
 	// Special handling for Blanks/NonBlanks.
-	re := blankFormat.MatchString((strings.ToLower(token)))
+	re := blankFormat.MatchString(strings.ToLower(token))
 	if re {
 		// Only allow Equals or NotEqual in this context.
 		if operator != 2 && operator != 5 {

xmlStyles.go

@@ -65,10 +65,10 @@ type xlsxLine struct {
 
 // xlsxColor is a common mapping used for both the fgColor and bgColor elements.
 // Foreground color of the cell fill pattern. Cell fill patterns operate with
-// two colors: a background color and a foreground color. These combine together
+// two colors: a background color and a foreground color. These combine
 // to make a patterned cell fill. Background color of the cell fill pattern.
 // Cell fill patterns operate with two colors: a background color and a
-// foreground color. These combine together to make a patterned cell fill.
+// foreground color. These combine to make a patterned cell fill.
 type xlsxColor struct {
 	Auto    bool    `xml:"auto,attr,omitempty"`
 	RGB     string  `xml:"rgb,attr,omitempty"`
@@ -103,7 +103,7 @@ type xlsxFont struct {
 	Scheme   *attrValString `xml:"scheme"`
 }
 
-// xlsxFills directly maps the fills element. This element defines the cell
+// xlsxFills directly maps the fills' element. This element defines the cell
 // fills portion of the Styles part, consisting of a sequence of fill records. A
 // cell fill consists of a background color, foreground color, and pattern to be
 // applied across the cell.
@@ -147,7 +147,7 @@ type xlsxGradientFillStop struct {
 	Color    xlsxColor `xml:"color,omitempty"`
 }
 
-// xlsxBorders directly maps the borders element. This element contains borders
+// xlsxBorders directly maps the borders' element. This element contains borders
 // formatting information, specifying all border definitions for all cells in
 // the workbook.
 type xlsxBorders struct {
@@ -205,7 +205,7 @@ type xlsxCellStyleXfs struct {
 	Xf    []xlsxXf `xml:"xf,omitempty"`
 }
 
-// xlsxXf directly maps the xf element. A single xf element describes all of the
+// xlsxXf directly maps the xf element. A single xf element describes all the
 // formatting for a cell.
 type xlsxXf struct {
 	NumFmtID          *int            `xml:"numFmtId,attr"`
@@ -236,8 +236,8 @@ type xlsxCellXfs struct {
 }
 
 // xlsxDxfs directly maps the dxfs element. This element contains the master
-// differential formatting records (dxf's) which define formatting for all non-
+// differential formatting records (dxf's) which define formatting for all
-// cell formatting in this workbook. Whereas xf records fully specify a
+// non-cell formatting in this workbook. Whereas xf records fully specify a
 // particular aspect of formatting (e.g., cell borders) by referencing those
 // formatting definitions elsewhere in the Styles part, dxf records specify
 // incremental (or differential) aspects of formatting directly inline within
@@ -304,7 +304,7 @@ type xlsxNumFmt struct {
 	FormatCode string `xml:"formatCode,attr,omitempty"`
 }
 
-// xlsxStyleColors directly maps the colors element. Color information
+// xlsxStyleColors directly maps the colors' element. Color information
 // associated with this stylesheet. This collection is written whenever the
 // legacy color palette has been modified (backwards compatibility settings) or
 // a custom color has been selected while using this workbook.

xmlWorkbook.go

@@ -212,7 +212,7 @@ type xlsxPivotCache struct {
 // document are specified in the markup specification and can be used to store
 // extensions to the markup specification, whether those are future version
 // extensions of the markup specification or are private extensions implemented
-// independently from the markup specification. Markup within an extension might
+// independently of the markup specification. Markup within an extension might
 // not be understood by a consumer.
 type xlsxExtLst struct {
 	Ext string `xml:",innerxml"`
@@ -229,7 +229,7 @@ type xlsxDefinedNames struct {
 // xlsxDefinedName directly maps the definedName element from the namespace
 // http://schemas.openxmlformats.org/spreadsheetml/2006/main This element
 // defines a defined name within this workbook. A defined name is descriptive
-// text that is used to represents a cell, range of cells, formula, or constant
+// text that is used to represent a cell, range of cells, formula, or constant
 // value. For a descriptions of the attributes see https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.spreadsheet.definedname
 type xlsxDefinedName struct {
 	Comment           string `xml:"comment,attr,omitempty"`

xmlWorksheet.go

@@ -427,7 +427,7 @@ type xlsxDataValidations struct {
 	DataValidation []*DataValidation `xml:"dataValidation"`
 }
 
-// DataValidation directly maps the a single item of data validation defined
+// DataValidation directly maps the single item of data validation defined
 // on a range of the worksheet.
 type DataValidation struct {
 	AllowBlank       bool    `xml:"allowBlank,attr"`