Variables

var (
    // ErrAddVBAProject defined the error message on add the VBA project in the workbook.
    ErrAddVBAProject = errors.New("unsupported VBA project")
    // ErrAttrValBool defined the error message on marshal and unmarshal boolean type XML attribute.
    ErrAttrValBool = errors.New("unexpected child of attrValBool")
    // ErrCellCharsLength defined the error message for receiving a cell characters length that exceeds the limit.
    ErrCellCharsLength = fmt.Errorf("cell value must be 0-%d characters", TotalCellChars)
    // ErrCellStyles defined the error message on cell styles exceeds the limit.
    ErrCellStyles = fmt.Errorf("the cell styles exceeds the %d limit", MaxCellStyles)
    // ErrColumnNumber defined the error message on receive an invalid column number.
    ErrColumnNumber = fmt.Errorf("the column number must be greater than or equal to %d and less than or equal to %d", MinColumns, MaxColumns)
    // ErrColumnWidth defined the error message on receive an invalid column width.
    ErrColumnWidth = fmt.Errorf("the width of the column must be less than or equal to %d characters", MaxColumnWidth)
    // ErrCoordinates defined the error message on invalid coordinates tuples length.
    ErrCoordinates = errors.New("coordinates length must be 4")
    // ErrCustomNumFmt defined the error message on receive the empty custom number format.
    ErrCustomNumFmt = errors.New("custom number format can not be empty")
    // ErrDataValidationFormulaLength defined the error message for receiving a data validation formula length that exceeds the limit.
    ErrDataValidationFormulaLength = fmt.Errorf("data validation must be 0-%d characters", MaxFieldLength)
    // ErrDataValidationRange defined the error message on set decimal range exceeds limit.
    ErrDataValidationRange = errors.New("data validation range exceeds limit")
    // ErrDefinedNameDuplicate defined the error message on the same name already exists on the scope.
    ErrDefinedNameDuplicate = errors.New("the same name already exists on the scope")
    // ErrDefinedNameScope defined the error message on not found defined name in the given scope.
    ErrDefinedNameScope = errors.New("no defined name on the scope")
    // ErrExistsSheet defined the error message on given sheet already exists.
    ErrExistsSheet = errors.New("the same name sheet already exists")
    // ErrExistsTableName defined the error message on given table already exists.
    ErrExistsTableName = errors.New("the same name table already exists")
    // ErrFontLength defined the error message on the length of the font family name overflow.
    ErrFontLength = fmt.Errorf("the length of the font family name must be less than or equal to %d", MaxFontFamilyLength)
    // ErrFontSize defined the error message on the size of the font is invalid.
    ErrFontSize = fmt.Errorf("font size must be between %d and %d points", MinFontSize, MaxFontSize)
    // ErrFormControlValue defined the error message for receiving a scroll value exceeds limit.
    ErrFormControlValue = fmt.Errorf("scroll value must be between 0 and %d", MaxFormControlValue)
    // ErrGroupSheets defined the error message on group sheets.
    ErrGroupSheets = errors.New("group worksheet must contain an active worksheet")
    // ErrImgExt defined the error message on receive an unsupported image extension.
    ErrImgExt = errors.New("unsupported image extension")
    // ErrInvalidFormula defined the error message on receive an invalid formula.
    ErrInvalidFormula = errors.New("formula not valid")
    // ErrMaxFilePathLength defined the error message on receive the file path length overflow.
    ErrMaxFilePathLength = fmt.Errorf("file path length exceeds maximum limit %d characters", MaxFilePathLength)
    // ErrMaxRowHeight defined the error message on receive an invalid row height.
    ErrMaxRowHeight = fmt.Errorf("the height of the row must be less than or equal to %d points", MaxRowHeight)
    // ErrMaxRows defined the error message on receive a row number exceeds maximum limit.
    ErrMaxRows = errors.New("row number exceeds maximum limit")
    // ErrNameLength defined the error message on receiving the defined name or table name length exceeds the limit.
    ErrNameLength = fmt.Errorf("the name length exceeds the %d characters limit", MaxFieldLength)
    // ErrOptionsUnzipSizeLimit defined the error message for receiving invalid UnzipSizeLimit and UnzipXMLSizeLimit.
    ErrOptionsUnzipSizeLimit = errors.New("the value of UnzipSizeLimit should be greater than or equal to UnzipXMLSizeLimit")
    // ErrOutlineLevel defined the error message on receive an invalid outline level number.
    ErrOutlineLevel = errors.New("invalid outline level")
    // ErrPageSetupAdjustTo defined the error message for receiving a page setup adjust to value exceeds limit.
    ErrPageSetupAdjustTo = errors.New("adjust to value must be between 10 and 400")
    // ErrParameterInvalid defined the error message on receive the invalid parameter.
    ErrParameterInvalid = errors.New("parameter is invalid")
    // ErrParameterRequired defined the error message on receive the empty parameter.
    ErrParameterRequired = errors.New("parameter is required")
    // ErrPasswordLengthInvalid defined the error message on invalid password length.
    ErrPasswordLengthInvalid = errors.New("password length invalid")
    // ErrPivotTableClassicLayout defined the error message on enable ClassicLayout and CompactData in the same time
    ErrPivotTableClassicLayout = errors.New("cannot enable ClassicLayout and CompactData in the same time")
    // ErrSave defined the error message for saving file.
    ErrSave = errors.New("no path defined for file, consider File.WriteTo or File.Write")
    // ErrSheetIdx defined the error message on receive the invalid worksheet index.
    ErrSheetIdx = errors.New("invalid worksheet index")
    // ErrSheetNameBlank defined the error message on receive the blank sheet name.
    ErrSheetNameBlank = errors.New("the sheet name can not be blank")
    // ErrSheetNameInvalid defined the error message on receive the sheet name contains invalid characters.
    ErrSheetNameInvalid = errors.New("the sheet can not contain any of the characters :\\/?*[or]")
    // ErrSheetNameLength defined the error message on receiving the sheet name length exceeds the limit.
    ErrSheetNameLength = fmt.Errorf("the sheet name length exceeds the %d characters limit", MaxSheetNameLength)
    // ErrSheetNameSingleQuote defined the error message on the first or last character of the sheet name was a single quote.
    ErrSheetNameSingleQuote = errors.New("the first or last character of the sheet name can not be a single quote")
    // ErrSparkline defined the error message on receive the invalid sparkline parameters.
    ErrSparkline = errors.New("must have the same number of 'Location' and 'Range' parameters")
    // ErrSparklineLocation defined the error message on missing Location parameters
    ErrSparklineLocation = errors.New("parameter 'Location' is required")
    // ErrSparklineRange defined the error message on missing sparkline Range parameters
    ErrSparklineRange = errors.New("parameter 'Range' is required")
    // ErrSparklineStyle defined the error message on receive the invalid sparkline Style parameters.
    ErrSparklineStyle = errors.New("parameter 'Style' must between 0-35")
    // ErrSparklineType defined the error message on receive the invalid sparkline Type parameters.
    ErrSparklineType = errors.New("parameter 'Type' must be 'line', 'column' or 'win_loss'")
    // ErrStreamSetColStyle defined the error message on set column style in stream writing mode.
    ErrStreamSetColStyle = errors.New("must call the SetColStyle function before the SetRow function")
    // ErrStreamSetColWidth defined the error message on set column width in stream writing mode.
    ErrStreamSetColWidth = errors.New("must call the SetColWidth function before the SetRow function")
    // ErrStreamSetPanes defined the error message on set panes in stream writing mode.
    ErrStreamSetPanes = errors.New("must call the SetPanes function before the SetRow function")
    // ErrTotalSheetHyperlinks defined the error message on hyperlinks count overflow.
    ErrTotalSheetHyperlinks = errors.New("over maximum limit hyperlinks in a worksheet")
    // ErrUnknownEncryptMechanism defined the error message on unsupported encryption mechanism.
    ErrUnknownEncryptMechanism = errors.New("unknown encryption mechanism")
    // ErrUnprotectSheet defined the error message on worksheet has set no protection.
    ErrUnprotectSheet = errors.New("worksheet has set no protect")
    // ErrUnprotectSheetPassword defined the error message on remove sheet protection with password verification failed.
    ErrUnprotectSheetPassword = errors.New("worksheet protect password not match")
    // ErrUnprotectWorkbook defined the error message on workbook has set no protection.
    ErrUnprotectWorkbook = errors.New("workbook has set no protect")
    // ErrUnprotectWorkbookPassword defined the error message on remove workbook protection with password verification failed.
    ErrUnprotectWorkbookPassword = errors.New("workbook protect password not match")
    // ErrUnsupportedEncryptMechanism defined the error message on unsupported encryption mechanism.
    ErrUnsupportedEncryptMechanism = errors.New("unsupported encryption mechanism")
    // ErrUnsupportedHashAlgorithm defined the error message on unsupported hash algorithm.
    ErrUnsupportedHashAlgorithm = errors.New("unsupported hash algorithm")
    // ErrUnsupportedNumberFormat defined the error message on unsupported number format expression.
    ErrUnsupportedNumberFormat = errors.New("unsupported number format token")
    // ErrWorkbookFileFormat defined the error message on receive an unsupported workbook file format.
    ErrWorkbookFileFormat = errors.New("unsupported workbook file format")
    // ErrWorkbookPassword defined the error message on receiving the incorrect workbook password.
    ErrWorkbookPassword = errors.New("the supplied open workbook password is not correct")
)

Source relationship and namespace list, associated prefixes and schema in which it was introduced:

var (
    NameSpaceDocumentPropertiesVariantTypes = xml.Attr{Name: xml.Name{Local: "vt", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes"}
    NameSpaceDrawing2016SVG                 = xml.Attr{Name: xml.Name{Local: "asvg", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2016/SVG/main"}
    NameSpaceDrawingML                      = xml.Attr{Name: xml.Name{Local: "a", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/drawingml/2006/main"}
    NameSpaceDrawingMLA14                   = xml.Attr{Name: xml.Name{Local: "a14", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2010/main"}
    NameSpaceDrawingMLChart                 = xml.Attr{Name: xml.Name{Local: "c", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/drawingml/2006/chart"}
    NameSpaceDrawingMLSlicer                = xml.Attr{Name: xml.Name{Local: "sle", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2010/slicer"}
    NameSpaceDrawingMLSlicerX15             = xml.Attr{Name: xml.Name{Local: "sle15", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2012/slicer"}
    NameSpaceDrawingMLSpreadSheet           = xml.Attr{Name: xml.Name{Local: "xdr", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing"}
    NameSpaceMacExcel2008Main               = xml.Attr{Name: xml.Name{Local: "mx", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/mac/excel/2008/main"}
    NameSpaceSpreadSheet                    = xml.Attr{Name: xml.Name{Local: "xmlns"}, Value: "http://schemas.openxmlformats.org/spreadsheetml/2006/main"}
    NameSpaceSpreadSheetExcel2006Main       = xml.Attr{Name: xml.Name{Local: "xne", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/excel/2006/main"}
    NameSpaceSpreadSheetX14                 = xml.Attr{Name: xml.Name{Local: "x14", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/spreadsheetml/2009/9/main"}
    NameSpaceSpreadSheetX15                 = xml.Attr{Name: xml.Name{Local: "x15", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/spreadsheetml/2010/11/main"}
    NameSpaceSpreadSheetXR10                = xml.Attr{Name: xml.Name{Local: "xr10", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/spreadsheetml/2016/revision10"}
    SourceRelationship                      = xml.Attr{Name: xml.Name{Local: "r", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/officeDocument/2006/relationships"}
    SourceRelationshipChart20070802         = xml.Attr{Name: xml.Name{Local: "c14", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2007/8/2/chart"}
    SourceRelationshipChart2014             = xml.Attr{Name: xml.Name{Local: "c16", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2014/chart"}
    SourceRelationshipChart201506           = xml.Attr{Name: xml.Name{Local: "c16r2", Space: "xmlns"}, Value: "http://schemas.microsoft.com/office/drawing/2015/06/chart"}
    SourceRelationshipCompatibility         = xml.Attr{Name: xml.Name{Local: "mc", Space: "xmlns"}, Value: "http://schemas.openxmlformats.org/markup-compatibility/2006"}
)

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",
    "000000", "FFFFFF",
}