Support get cell value which contains a date in the ISO 8601 format

- Support set and get font color with indexed color
- New export variable `IndexedColorMapping`
- Fix getting incorrect page margin settings when the margin is 0
- Update unit tests and comments typo fixes
- ref #65, new formula functions: AGGREGATE and SUBTOTAL

calc.go

@@ -339,6 +339,7 @@ type formulaFuncs struct {
 //	ACOT
 //	ACOTH
 //	ADDRESS
+//	AGGREGATE
 //	AMORDEGRC
 //	AMORLINC
 //	AND
@@ -700,6 +701,7 @@ type formulaFuncs struct {
 //	STDEVPA
 //	STEYX
 //	SUBSTITUTE
+//	SUBTOTAL
 //	SUM
 //	SUMIF
 //	SUMIFS
@@ -872,7 +874,6 @@ func (f *File) evalInfixExp(ctx *calcContext, sheet, cell string, tokens []efp.T
 	var err error
 	opdStack, optStack, opfStack, opfdStack, opftStack, argsStack := NewStack(), NewStack(), NewStack(), NewStack(), NewStack(), NewStack()
 	var inArray, inArrayRow bool
-	var arrayRow []formulaArg
 	for i := 0; i < len(tokens); i++ {
 		token := tokens[i]
 
@@ -981,7 +982,6 @@ func (f *File) evalInfixExp(ctx *calcContext, sheet, cell string, tokens []efp.T
 				argsStack.Peek().(*list.List).PushBack(newStringFormulaArg(token.TValue))
 			}
 			if inArrayRow && isOperand(token) {
-				arrayRow = append(arrayRow, tokenToFormulaArg(token))
 				continue
 			}
 			if inArrayRow && isFunctionStopToken(token) {
@@ -990,7 +990,7 @@ func (f *File) evalInfixExp(ctx *calcContext, sheet, cell string, tokens []efp.T
 			}
 			if inArray && isFunctionStopToken(token) {
 				argsStack.Peek().(*list.List).PushBack(opfdStack.Pop())
-				arrayRow, inArray = []formulaArg{}, false
+				inArray = false
 				continue
 			}
 			if err = f.evalInfixExpFunc(ctx, sheet, cell, token, nextToken, opfStack, opdStack, opftStack, opfdStack, argsStack); err != nil {
@@ -3559,6 +3559,56 @@ func (fn *formulaFuncs) ACOTH(argsList *list.List) formulaArg {
 	return newNumberFormulaArg(math.Atanh(1 / arg.Number))
 }
 
+// AGGREGATE function returns the result of a specified operation or function,
+// applied to a list or database of values. The syntax of the function is:
+//
+//	AGGREGATE(function_num,options,ref1,[ref2],...)
+func (fn *formulaFuncs) AGGREGATE(argsList *list.List) formulaArg {
+	if argsList.Len() < 2 {
+		return newErrorFormulaArg(formulaErrorVALUE, "AGGREGATE requires at least 3 arguments")
+	}
+	var fnNum, opts formulaArg
+	if fnNum = argsList.Front().Value.(formulaArg).ToNumber(); fnNum.Type != ArgNumber {
+		return fnNum
+	}
+	subFn, ok := map[int]func(argsList *list.List) formulaArg{
+		1:  fn.AVERAGE,
+		2:  fn.COUNT,
+		3:  fn.COUNTA,
+		4:  fn.MAX,
+		5:  fn.MIN,
+		6:  fn.PRODUCT,
+		7:  fn.STDEVdotS,
+		8:  fn.STDEVdotP,
+		9:  fn.SUM,
+		10: fn.VARdotS,
+		11: fn.VARdotP,
+		12: fn.MEDIAN,
+		13: fn.MODEdotSNGL,
+		14: fn.LARGE,
+		15: fn.SMALL,
+		16: fn.PERCENTILEdotINC,
+		17: fn.QUARTILEdotINC,
+		18: fn.PERCENTILEdotEXC,
+		19: fn.QUARTILEdotEXC,
+	}[int(fnNum.Number)]
+	if !ok {
+		return newErrorFormulaArg(formulaErrorVALUE, "AGGREGATE has invalid function_num")
+	}
+	if opts = argsList.Front().Next().Value.(formulaArg).ToNumber(); opts.Type != ArgNumber {
+		return opts
+	}
+	// TODO: apply option argument values to be ignored during the calculation
+	if int(opts.Number) < 0 || int(opts.Number) > 7 {
+		return newErrorFormulaArg(formulaErrorVALUE, "AGGREGATE has invalid options")
+	}
+	subArgList := list.New().Init()
+	for arg := argsList.Front().Next().Next(); arg != nil; arg = arg.Next() {
+		subArgList.PushBack(arg.Value.(formulaArg))
+	}
+	return subFn(subArgList)
+}
+
 // ARABIC function converts a Roman numeral into an Arabic numeral. The syntax
 // of the function is:
 //
@@ -5555,6 +5605,41 @@ func (fn *formulaFuncs) POISSON(argsList *list.List) formulaArg {
 	return newNumberFormulaArg(math.Exp(0-mean.Number) * math.Pow(mean.Number, x.Number) / fact(x.Number))
 }
 
+// SUBTOTAL function performs a specified calculation (e.g. the sum, product,
+// average, etc.) for a supplied set of values. The syntax of the function is:
+//
+//	SUBTOTAL(function_num,ref1,[ref2],...)
+func (fn *formulaFuncs) SUBTOTAL(argsList *list.List) formulaArg {
+	if argsList.Len() < 2 {
+		return newErrorFormulaArg(formulaErrorVALUE, "SUBTOTAL requires at least 2 arguments")
+	}
+	var fnNum formulaArg
+	if fnNum = argsList.Front().Value.(formulaArg).ToNumber(); fnNum.Type != ArgNumber {
+		return fnNum
+	}
+	subFn, ok := map[int]func(argsList *list.List) formulaArg{
+		1: fn.AVERAGE, 101: fn.AVERAGE,
+		2: fn.COUNT, 102: fn.COUNT,
+		3: fn.COUNTA, 103: fn.COUNTA,
+		4: fn.MAX, 104: fn.MAX,
+		5: fn.MIN, 105: fn.MIN,
+		6: fn.PRODUCT, 106: fn.PRODUCT,
+		7: fn.STDEV, 107: fn.STDEV,
+		8: fn.STDEVP, 108: fn.STDEVP,
+		9: fn.SUM, 109: fn.SUM,
+		10: fn.VAR, 110: fn.VAR,
+		11: fn.VARP, 111: fn.VARP,
+	}[int(fnNum.Number)]
+	if !ok {
+		return newErrorFormulaArg(formulaErrorVALUE, "SUBTOTAL has invalid function_num")
+	}
+	subArgList := list.New().Init()
+	for arg := argsList.Front().Next(); arg != nil; arg = arg.Next() {
+		subArgList.PushBack(arg.Value.(formulaArg))
+	}
+	return subFn(subArgList)
+}
+
 // SUM function adds together a supplied set of numbers and returns the sum of
 // these values. The syntax of the function is:
 //
@@ -11622,8 +11707,7 @@ func (fn *formulaFuncs) OR(argsList *list.List) formulaArg {
 			}
 			return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
 		case ArgNumber:
-			or = token.Number != 0
+			if or = token.Number != 0; or {
-			if or {
 				return newStringFormulaArg(strings.ToUpper(strconv.FormatBool(or)))
 			}
 		case ArgMatrix:

calc_test.go

@@ -393,16 +393,34 @@ func TestCalcCellValue(t *testing.T) {
 		"=ACOSH(2.5)":      "1.56679923697241",
 		"=ACOSH(5)":        "2.29243166956118",
 		"=ACOSH(ACOSH(5))": "1.47138332153668",
-		// ACOT
+		// _xlfn.ACOT
 		"=_xlfn.ACOT(1)":             "0.785398163397448",
 		"=_xlfn.ACOT(-2)":            "2.67794504458899",
 		"=_xlfn.ACOT(0)":             "1.5707963267949",
 		"=_xlfn.ACOT(_xlfn.ACOT(0))": "0.566911504941009",
-		// ACOTH
+		// _xlfn.ACOTH
 		"=_xlfn.ACOTH(-5)":      "-0.202732554054082",
 		"=_xlfn.ACOTH(1.1)":     "1.52226121886171",
 		"=_xlfn.ACOTH(2)":       "0.549306144334055",
 		"=_xlfn.ACOTH(ABS(-2))": "0.549306144334055",
+		// _xlfn.AGGREGATE
+		"=_xlfn.AGGREGATE(1,0,A1:A6)":    "1.5",
+		"=_xlfn.AGGREGATE(2,0,A1:A6)":    "4",
+		"=_xlfn.AGGREGATE(3,0,A1:A6)":    "4",
+		"=_xlfn.AGGREGATE(4,0,A1:A6)":    "3",
+		"=_xlfn.AGGREGATE(5,0,A1:A6)":    "0",
+		"=_xlfn.AGGREGATE(6,0,A1:A6)":    "0",
+		"=_xlfn.AGGREGATE(7,0,A1:A6)":    "1.29099444873581",
+		"=_xlfn.AGGREGATE(8,0,A1:A6)":    "1.11803398874989",
+		"=_xlfn.AGGREGATE(9,0,A1:A6)":    "6",
+		"=_xlfn.AGGREGATE(10,0,A1:A6)":   "1.66666666666667",
+		"=_xlfn.AGGREGATE(11,0,A1:A6)":   "1.25",
+		"=_xlfn.AGGREGATE(12,0,A1:A6)":   "1.5",
+		"=_xlfn.AGGREGATE(14,0,A1:A6,1)": "3",
+		"=_xlfn.AGGREGATE(15,0,A1:A6,1)": "0",
+		"=_xlfn.AGGREGATE(16,0,A1:A6,1)": "3",
+		"=_xlfn.AGGREGATE(17,0,A1:A6,1)": "0.75",
+		"=_xlfn.AGGREGATE(19,0,A1:A6,1)": "0.25",
 		// ARABIC
 		"=_xlfn.ARABIC(\"IV\")":       "4",
 		"=_xlfn.ARABIC(\"-IV\")":      "-4",
@@ -791,6 +809,31 @@ func TestCalcCellValue(t *testing.T) {
 		// POISSON
 		"=POISSON(20,25,FALSE)": "0.0519174686084913",
 		"=POISSON(35,40,TRUE)":  "0.242414197690103",
+		// SUBTOTAL
+		"=SUBTOTAL(1,A1:A6)":         "1.5",
+		"=SUBTOTAL(2,A1:A6)":         "4",
+		"=SUBTOTAL(3,A1:A6)":         "4",
+		"=SUBTOTAL(4,A1:A6)":         "3",
+		"=SUBTOTAL(5,A1:A6)":         "0",
+		"=SUBTOTAL(6,A1:A6)":         "0",
+		"=SUBTOTAL(7,A1:A6)":         "1.29099444873581",
+		"=SUBTOTAL(8,A1:A6)":         "1.11803398874989",
+		"=SUBTOTAL(9,A1:A6)":         "6",
+		"=SUBTOTAL(10,A1:A6)":        "1.66666666666667",
+		"=SUBTOTAL(11,A1:A6)":        "1.25",
+		"=SUBTOTAL(101,A1:A6)":       "1.5",
+		"=SUBTOTAL(102,A1:A6)":       "4",
+		"=SUBTOTAL(103,A1:A6)":       "4",
+		"=SUBTOTAL(104,A1:A6)":       "3",
+		"=SUBTOTAL(105,A1:A6)":       "0",
+		"=SUBTOTAL(106,A1:A6)":       "0",
+		"=SUBTOTAL(107,A1:A6)":       "1.29099444873581",
+		"=SUBTOTAL(108,A1:A6)":       "1.11803398874989",
+		"=SUBTOTAL(109,A1:A6)":       "6",
+		"=SUBTOTAL(109,A1:A6,A1:A6)": "12",
+		"=SUBTOTAL(110,A1:A6)":       "1.66666666666667",
+		"=SUBTOTAL(111,A1:A6)":       "1.25",
+		"=SUBTOTAL(111,A1:A6,A1:A6)": "1.25",
 		// SUM
 		"=SUM(1,2)":                           "3",
 		`=SUM("",1,2)`:                        "3",
@@ -2344,6 +2387,15 @@ func TestCalcCellValue(t *testing.T) {
 		"=_xlfn.ACOTH()":               "ACOTH requires 1 numeric argument",
 		`=_xlfn.ACOTH("X")`:            "strconv.ParseFloat: parsing \"X\": invalid syntax",
 		"=_xlfn.ACOTH(_xlfn.ACOTH(2))": "#NUM!",
+		// _xlfn.AGGREGATE
+		"=_xlfn.AGGREGATE()":             "AGGREGATE requires at least 3 arguments",
+		"=_xlfn.AGGREGATE(\"\",0,A4:A5)": "strconv.ParseFloat: parsing \"\": invalid syntax",
+		"=_xlfn.AGGREGATE(1,\"\",A4:A5)": "strconv.ParseFloat: parsing \"\": invalid syntax",
+		"=_xlfn.AGGREGATE(0,A4:A5)":      "AGGREGATE has invalid function_num",
+		"=_xlfn.AGGREGATE(1,8,A4:A5)":    "AGGREGATE has invalid options",
+		"=_xlfn.AGGREGATE(1,0,A5:A6)":    "#DIV/0!",
+		"=_xlfn.AGGREGATE(13,0,A1:A6)":   "#N/A",
+		"=_xlfn.AGGREGATE(18,0,A1:A6,1)": "#NUM!",
 		// _xlfn.ARABIC
 		"=_xlfn.ARABIC()": "ARABIC requires 1 numeric argument",
 		"=_xlfn.ARABIC(\"" + strings.Repeat("I", 256) + "\")": "#VALUE!",
@@ -2611,6 +2663,11 @@ func TestCalcCellValue(t *testing.T) {
 		"=POISSON(0,\"\",FALSE)": "strconv.ParseFloat: parsing \"\": invalid syntax",
 		"=POISSON(0,0,\"\")":     "strconv.ParseBool: parsing \"\": invalid syntax",
 		"=POISSON(0,-1,TRUE)":    "#N/A",
+		// SUBTOTAL
+		"=SUBTOTAL()":           "SUBTOTAL requires at least 2 arguments",
+		"=SUBTOTAL(\"\",A4:A5)": "strconv.ParseFloat: parsing \"\": invalid syntax",
+		"=SUBTOTAL(0,A4:A5)":    "SUBTOTAL has invalid function_num",
+		"=SUBTOTAL(1,A5:A6)":    "#DIV/0!",
 		// SUM
 		"=SUM((":             ErrInvalidFormula.Error(),
 		"=SUM(-)":            ErrInvalidFormula.Error(),

cell.go

@@ -826,6 +826,7 @@ func getCellRichText(si *xlsxSI) (runs []RichTextRun) {
 				if v.RPr.Color.Theme != nil {
 					font.ColorTheme = v.RPr.Color.Theme
 				}
+				font.ColorIndexed = v.RPr.Color.Indexed
 				font.ColorTint = v.RPr.Color.Tint
 			}
 			run.Font = &font

cell_test.go

@@ -298,42 +298,46 @@ func TestGetCellValue(t *testing.T) {
 	assert.NoError(t, err)
 
 	f.Sheet.Delete("xl/worksheets/sheet1.xml")
-	f.Pkg.Store("xl/worksheets/sheet1.xml", []byte(fmt.Sprintf(sheetData, `<row r="1">
+	f.Pkg.Store("xl/worksheets/sheet1.xml", []byte(fmt.Sprintf(sheetData, `
-    <c r="A1"><v>2422.3000000000002</v></c>
+	<row r="1"><c r="A1"><v>2422.3000000000002</v></c></row>
-    <c r="B1"><v>2422.3000000000002</v></c>
+	<row r="2"><c r="A2"><v>2422.3000000000002</v></c></row>
-    <c r="C1"><v>12.4</v></c>
+	<row r="3"><c r="A3"><v>12.4</v></c></row>
-    <c r="D1"><v>964</v></c>
+	<row r="4"><c r="A4"><v>964</v></c></row>
-    <c r="E1"><v>1101.5999999999999</v></c>
+	<row r="5"><c r="A5"><v>1101.5999999999999</v></c></row>
-    <c r="F1"><v>275.39999999999998</v></c>
+	<row r="6"><c r="A6"><v>275.39999999999998</v></c></row>
-    <c r="G1"><v>68.900000000000006</v></c>
+	<row r="7"><c r="A7"><v>68.900000000000006</v></c></row>
-    <c r="H1"><v>44385.208333333336</v></c>
+	<row r="8"><c r="A8"><v>44385.208333333336</v></c></row>
-    <c r="I1"><v>5.0999999999999996</v></c>
+	<row r="9"><c r="A9"><v>5.0999999999999996</v></c></row>
-    <c r="J1"><v>5.1100000000000003</v></c>
+	<row r="10"><c r="A10"><v>5.1100000000000003</v></c></row>
-    <c r="K1"><v>5.0999999999999996</v></c>
+	<row r="11"><c r="A11"><v>5.0999999999999996</v></c></row>
-    <c r="L1"><v>5.1109999999999998</v></c>
+	<row r="12"><c r="A12"><v>5.1109999999999998</v></c></row>
-    <c r="M1"><v>5.1111000000000004</v></c>
+	<row r="13"><c r="A13"><v>5.1111000000000004</v></c></row>
-    <c r="N1"><v>2422.012345678</v></c>
+	<row r="14"><c r="A14"><v>2422.012345678</v></c></row>
-    <c r="O1"><v>2422.0123456789</v></c>
+	<row r="15"><c r="A15"><v>2422.0123456789</v></c></row>
-    <c r="P1"><v>12.012345678901</v></c>
+	<row r="16"><c r="A16"><v>12.012345678901</v></c></row>
-    <c r="Q1"><v>964</v></c>
+	<row r="17"><c r="A17"><v>964</v></c></row>
-    <c r="R1"><v>1101.5999999999999</v></c>
+	<row r="18"><c r="A18"><v>1101.5999999999999</v></c></row>
-    <c r="S1"><v>275.39999999999998</v></c>
+	<row r="19"><c r="A19"><v>275.39999999999998</v></c></row>
-    <c r="T1"><v>68.900000000000006</v></c>
+	<row r="20"><c r="A20"><v>68.900000000000006</v></c></row>
-    <c r="U1"><v>8.8880000000000001E-2</v></c>
+	<row r="21"><c r="A21"><v>8.8880000000000001E-2</v></c></row>
-    <c r="V1"><v>4.0000000000000003e-5</v></c>
+	<row r="22"><c r="A22"><v>4.0000000000000003e-5</v></c></row>
-    <c r="W1"><v>2422.3000000000002</v></c>
+	<row r="23"><c r="A23"><v>2422.3000000000002</v></c></row>
-    <c r="X1"><v>1101.5999999999999</v></c>
+	<row r="24"><c r="A24"><v>1101.5999999999999</v></c></row>
-    <c r="Y1"><v>275.39999999999998</v></c>
+	<row r="25"><c r="A25"><v>275.39999999999998</v></c></row>
-    <c r="Z1"><v>68.900000000000006</v></c>
+	<row r="26"><c r="A26"><v>68.900000000000006</v></c></row>
-    <c r="AA1"><v>1.1000000000000001</v></c>
+	<row r="27"><c r="A27"><v>1.1000000000000001</v></c></row>
-    <c r="AB1" t="str"><v>1234567890123_4</v></c>
+	<row r="28"><c r="A28" t="str"><v>1234567890123_4</v></c></row>
-    <c r="AC1" t="str"><v>123456789_0123_4</v></c>
+	<row r="29"><c r="A29" t="str"><v>123456789_0123_4</v></c></row>
-    <c r="AD1"><v>+0.0000000000000000002399999999999992E-4</v></c>
+	<row r="30"><c r="A30"><v>+0.0000000000000000002399999999999992E-4</v></c></row>
-    <c r="AE1"><v>7.2399999999999992E-2</v></c>
+	<row r="31"><c r="A31"><v>7.2399999999999992E-2</v></c></row>
-</row>`)))
+	<row r="32"><c r="A32" t="d"><v>20200208T080910.123</v></c></row>
+	<row r="33"><c r="A33" t="d"><v>20200208T080910,123</v></c></row>
+	<row r="34"><c r="A34" t="d"><v>20221022T150529Z</v></c></row>
+	<row r="35"><c r="A35" t="d"><v>2022-10-22T15:05:29Z</v></c></row>
+	<row r="36"><c r="A36" t="d"><v>2020-07-10 15:00:00.000</v></c></row>`)))
 	f.checked = nil
-	rows, err = f.GetRows("Sheet1")
+	rows, err = f.GetCols("Sheet1")
-	assert.Equal(t, [][]string{{
+	assert.Equal(t, []string{
 		"2422.3",
 		"2422.3",
 		"12.4",
@@ -365,7 +369,12 @@ func TestGetCellValue(t *testing.T) {
 		"123456789_0123_4",
 		"2.39999999999999E-23",
 		"0.0724",
-	}}, rows)
+		"43869.3397004977",
+		"43869.3397004977",
+		"44856.6288078704",
+		"44856.6288078704",
+		"2020-07-10 15:00:00.000",
+	}, rows[0])
 	assert.NoError(t, err)
 }
 
@@ -598,6 +607,7 @@ func TestSetCellRichText(t *testing.T) {
 			Font: &Font{
 				Bold:         true,
 				Color:        "2354e8",
+				ColorIndexed: 0,
 				Family:       "Times New Roman",
 			},
 		},
@@ -742,7 +752,7 @@ func TestSharedStringsError(t *testing.T) {
 	assert.Equal(t, "1", f.getFromStringItem(1))
 	// Cleanup undelete temporary files
 	assert.NoError(t, os.Remove(tempFile.(string)))
-	// Test reload the file error on set cell cell and rich text. The error message was different between macOS and Windows.
+	// Test reload the file error on set cell value and rich text. The error message was different between macOS and Windows.
 	err = f.SetCellValue("Sheet1", "A19", "A19")
 	assert.Error(t, err)
 

file.go

@@ -176,7 +176,7 @@ func (f *File) writeToZip(zw *zip.Writer) error {
 	f.workBookWriter()
 	f.workSheetWriter()
 	f.relsWriter()
-	f.sharedStringsLoader()
+	_ = f.sharedStringsLoader()
 	f.sharedStringsWriter()
 	f.styleSheetWriter()
 

rows.go

@@ -20,6 +20,8 @@ import (
 	"math"
 	"os"
 	"strconv"
+	"strings"
+	"time"
 
 	"github.com/mohae/deepcopy"
 )
@@ -447,14 +449,8 @@ func (f *File) sharedStringsReader() *xlsxSST {
 	return f.SharedStrings
 }
 
-// getValueFrom return a value from a column/row cell, this function is
+// getCellDate parse cell value which containing a boolean.
-// intended to be used with for range on rows an argument with the spreadsheet
+func (c *xlsxC) getCellBool(f *File, raw bool) (string, error) {
-// opened file.
-func (c *xlsxC) getValueFrom(f *File, d *xlsxSST, raw bool) (string, error) {
-	f.Lock()
-	defer f.Unlock()
-	switch c.T {
-	case "b":
 	if !raw {
 		if c.V == "1" {
 			return "TRUE", nil
@@ -464,6 +460,39 @@ func (c *xlsxC) getValueFrom(f *File, d *xlsxSST, raw bool) (string, error) {
 		}
 	}
 	return f.formattedValue(c.S, c.V, raw), nil
+}
+
+// getCellDate parse cell value which contains a date in the ISO 8601 format.
+func (c *xlsxC) getCellDate(f *File, raw bool) (string, error) {
+	if !raw {
+		layout := "20060102T150405.999"
+		if strings.HasSuffix(c.V, "Z") {
+			layout = "20060102T150405Z"
+			if strings.Contains(c.V, "-") {
+				layout = "2006-01-02T15:04:05Z"
+			}
+		} else if strings.Contains(c.V, "-") {
+			layout = "2006-01-02 15:04:05Z"
+		}
+		if timestamp, err := time.Parse(layout, strings.ReplaceAll(c.V, ",", ".")); err == nil {
+			excelTime, _ := timeToExcelTime(timestamp, false)
+			c.V = strconv.FormatFloat(excelTime, 'G', 15, 64)
+		}
+	}
+	return f.formattedValue(c.S, c.V, raw), nil
+}
+
+// getValueFrom return a value from a column/row cell, this function is
+// intended to be used with for range on rows an argument with the spreadsheet
+// opened file.
+func (c *xlsxC) getValueFrom(f *File, d *xlsxSST, raw bool) (string, error) {
+	f.Lock()
+	defer f.Unlock()
+	switch c.T {
+	case "b":
+		return c.getCellBool(f, raw)
+	case "d":
+		return c.getCellDate(f, raw)
 	case "s":
 		if c.V != "" {
 			xlsxSI := 0
@@ -760,7 +789,7 @@ func (f *File) duplicateMergeCells(sheet string, ws *xlsxWorksheet, row, row2 in
 //	    <c r="G15" s="1" />
 //	</row>
 //
-// Noteice: this method could be very slow for large spreadsheets (more than
+// Notice: this method could be very slow for large spreadsheets (more than
 // 3000 rows one sheet).
 func checkRow(ws *xlsxWorksheet) error {
 	for rowIdx := range ws.SheetData.Row {
@@ -793,7 +822,7 @@ func checkRow(ws *xlsxWorksheet) error {
 
 		if colCount < lastCol {
 			oldList := rowData.C
-			newlist := make([]xlsxC, 0, lastCol)
+			newList := make([]xlsxC, 0, lastCol)
 
 			rowData.C = ws.SheetData.Row[rowIdx].C[:0]
 
@@ -802,10 +831,10 @@ func checkRow(ws *xlsxWorksheet) error {
 				if err != nil {
 					return err
 				}
-				newlist = append(newlist, xlsxC{R: cellName})
+				newList = append(newList, xlsxC{R: cellName})
 			}
 
-			rowData.C = newlist
+			rowData.C = newList
 
 			for colIdx := range oldList {
 				colData := &oldList[colIdx]

rows_test.go

@@ -1048,7 +1048,7 @@ func TestNumberFormats(t *testing.T) {
 		{"A32", numFmt40, -8.8888666665555487, "(8.89)"},
 	} {
 		cell, styleID, value, expected := cases[0].(string), cases[1].(int), cases[2], cases[3].(string)
-		f.SetCellStyle("Sheet1", cell, cell, styleID)
+		assert.NoError(t, f.SetCellStyle("Sheet1", cell, cell, styleID))
 		assert.NoError(t, f.SetCellValue("Sheet1", cell, value))
 		result, err := f.GetCellValue("Sheet1", cell)
 		assert.NoError(t, err)

sheetpr.go

@@ -80,25 +80,13 @@ func (f *File) GetPageMargins(sheet string) (PageLayoutMarginsOptions, error) {
 		return opts, err
 	}
 	if ws.PageMargins != nil {
-		if ws.PageMargins.Bottom != 0 {
 		opts.Bottom = float64Ptr(ws.PageMargins.Bottom)
-		}
-		if ws.PageMargins.Footer != 0 {
 		opts.Footer = float64Ptr(ws.PageMargins.Footer)
-		}
-		if ws.PageMargins.Header != 0 {
 		opts.Header = float64Ptr(ws.PageMargins.Header)
-		}
-		if ws.PageMargins.Left != 0 {
 		opts.Left = float64Ptr(ws.PageMargins.Left)
-		}
-		if ws.PageMargins.Right != 0 {
 		opts.Right = float64Ptr(ws.PageMargins.Right)
-		}
-		if ws.PageMargins.Top != 0 {
 		opts.Top = float64Ptr(ws.PageMargins.Top)
 	}
-	}
 	if ws.PrintOptions != nil {
 		opts.Horizontally = boolPtr(ws.PrintOptions.HorizontalCentered)
 		opts.Vertically = boolPtr(ws.PrintOptions.VerticalCentered)
@@ -106,7 +94,7 @@ func (f *File) GetPageMargins(sheet string) (PageLayoutMarginsOptions, error) {
 	return opts, err
 }
 
-// prepareSheetPr sheetPr element if which not exist.
+// prepareSheetPr create sheetPr element which not exist.
 func (ws *xlsxWorksheet) prepareSheetPr() {
 	if ws.SheetPr == nil {
 		ws.SheetPr = new(xlsxSheetPr)

sheetpr_test.go

@@ -1,7 +1,6 @@
 package excelize
 
 import (
-	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -39,21 +38,6 @@ func TestGetPageMargins(t *testing.T) {
 	assert.EqualError(t, err, "sheet SheetN does not exist")
 }
 
-func TestDebug(t *testing.T) {
-	f := NewFile()
-	assert.NoError(t, f.SetSheetProps("Sheet1", nil))
-	ws, ok := f.Sheet.Load("xl/worksheets/sheet1.xml")
-	assert.True(t, ok)
-	ws.(*xlsxWorksheet).PageMargins = nil
-	ws.(*xlsxWorksheet).PrintOptions = nil
-	ws.(*xlsxWorksheet).SheetPr = nil
-	ws.(*xlsxWorksheet).SheetFormatPr = nil
-	// w := uint8(10)
-	// f.SetSheetProps("Sheet1", &SheetPropsOptions{BaseColWidth: &w})
-	f.SetPageMargins("Sheet1", &PageLayoutMarginsOptions{Horizontally: boolPtr(true)})
-	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestDebug.xlsx")))
-}
-
 func TestSetSheetProps(t *testing.T) {
 	f := NewFile()
 	assert.NoError(t, f.SetSheetProps("Sheet1", nil))

stream.go

@@ -369,11 +369,11 @@ func (sw *StreamWriter) SetRow(cell string, values []interface{}, opts ...RowOpt
 	if err != nil {
 		return err
 	}
-	sw.rawData.WriteString(`<row r="`)
+	_, _ = sw.rawData.WriteString(`<row r="`)
-	sw.rawData.WriteString(strconv.Itoa(row))
+	_, _ = sw.rawData.WriteString(strconv.Itoa(row))
-	sw.rawData.WriteString(`"`)
+	_, _ = sw.rawData.WriteString(`"`)
-	sw.rawData.WriteString(attrs.String())
+	_, _ = sw.rawData.WriteString(attrs.String())
-	sw.rawData.WriteString(`>`)
+	_, _ = sw.rawData.WriteString(`>`)
 	for i, val := range values {
 		if val == nil {
 			continue
@@ -643,12 +643,12 @@ type bufferedWriter struct {
 	buf bytes.Buffer
 }
 
-// Write to the in-memory buffer. The err is always nil.
+// Write to the in-memory buffer. The error is always nil.
 func (bw *bufferedWriter) Write(p []byte) (n int, err error) {
 	return bw.buf.Write(p)
 }
 
-// WriteString wite to the in-memory buffer. The err is always nil.
+// WriteString write to the in-memory buffer. The error is always nil.
 func (bw *bufferedWriter) WriteString(p string) (n int, err error) {
 	return bw.buf.WriteString(p)
 }

stream_test.go

@@ -235,7 +235,7 @@ func TestStreamSetRowNilValues(t *testing.T) {
 	file := NewFile()
 	streamWriter, err := file.NewStreamWriter("Sheet1")
 	assert.NoError(t, err)
-	streamWriter.SetRow("A1", []interface{}{nil, nil, Cell{Value: "foo"}})
+	assert.NoError(t, streamWriter.SetRow("A1", []interface{}{nil, nil, Cell{Value: "foo"}}))
 	streamWriter.Flush()
 	ws, err := file.workSheetReader("Sheet1")
 	assert.NoError(t, err)

styles.go

@@ -2164,6 +2164,10 @@ func newFontColor(font *Font) *xlsxColor {
 		prepareFontColor()
 		fontColor.RGB = getPaletteColor(font.Color)
 	}
+	if font.ColorIndexed >= 0 && font.ColorIndexed <= len(IndexedColorMapping)+1 {
+		prepareFontColor()
+		fontColor.Indexed = font.ColorIndexed
+	}
 	if font.ColorTheme != nil {
 		prepareFontColor()
 		fontColor.Theme = font.ColorTheme

table.go

@@ -221,7 +221,7 @@ func parseAutoFilterOptions(opts string) (*autoFilterOptions, error) {
 //
 //	err := f.AutoFilter("Sheet1", "A1", "D4", `{"column":"B","expression":"x != blanks"}`)
 //
-// column defines the filter columns in a auto filter range based on simple
+// column defines the filter columns in an auto filter range based on simple
 // criteria
 //
 // It isn't sufficient to just specify the filter condition. You must also

xmlDrawing.go

@@ -141,6 +141,26 @@ const (
 	ColorMappingTypeUnset int = -1
 )
 
+// IndexedColorMapping is the table of default mappings from indexed color value
+// to RGB value. Note that 0-7 are redundant of 8-15 to preserve backwards
+// compatibility. A legacy indexing scheme for colors that is still required
+// for some records, and for backwards compatibility with legacy formats. This
+// element contains a sequence of RGB color values that correspond to color
+// indexes (zero-based). When using the default indexed color palette, the
+// values are not written out, but instead are implied. When the color palette
+// has been modified from default, then the entire color palette is written
+// out.
+var IndexedColorMapping = []string{
+	"000000", "FFFFFF", "FF0000", "00FF00", "0000FF", "FFFF00", "FF00FF", "00FFFF",
+	"000000", "FFFFFF", "FF0000", "00FF00", "0000FF", "FFFF00", "FF00FF", "00FFFF",
+	"800000", "008000", "000080", "808000", "800080", "008080", "C0C0C0", "808080",
+	"9999FF", "993366", "FFFFCC", "CCFFFF", "660066", "FF8080", "0066CC", "CCCCFF",
+	"000080", "FF00FF", "FFFF00", "00FFFF", "800080", "800000", "008080", "0000FF",
+	"00CCFF", "CCFFFF", "CCFFCC", "FFFF99", "99CCFF", "FF99CC", "CC99FF", "FFCC99",
+	"3366FF", "33CCCC", "99CC00", "FFCC00", "FF9900", "FF6600", "666699", "969696",
+	"003366", "339966", "003300", "333300", "993300", "993366", "333399", "333333",
+}
+
 // supportedImageTypes defined supported image types.
 var supportedImageTypes = map[string]string{".gif": ".gif", ".jpg": ".jpeg", ".jpeg": ".jpeg", ".png": ".png", ".tif": ".tiff", ".tiff": ".tiff", ".emf": ".emf", ".wmf": ".wmf", ".emz": ".emz", ".wmz": ".wmz"}
 

xmlStyles.go

@@ -341,6 +341,7 @@ type Font struct {
 	Size         float64 `json:"size"`
 	Strike       bool    `json:"strike"`
 	Color        string  `json:"color"`
+	ColorIndexed int     `json:"color_indexed"`
 	ColorTheme   *int    `json:"color_theme"`
 	ColorTint    float64 `json:"color_tint"`
 	VertAlign    string  `json:"vertAlign"`