(Swift 3,4,5...) Parse the XML of an Excel (XLS) Spreadsheet

Demonstrate how to access various items from the XML of an XLS (Excel) Spreadsheet. Our sample data is shown below, and can be downloaded from http://www.chilkatsoft.com/data/ndc_nhric_labeler_codes_04_29_2015.xls

<?xml version="1.0" version="1.0" encoding="utf-8" ?>
<mso-application progid="Excel.Sheet"?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">
    <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
        <Version>14.00</Version>
    </DocumentProperties>
    <OfficeDocumentSettings xmlns="urn:schemas-microsoft-com:office:office">
        <AllowPNG />
    </OfficeDocumentSettings>
    <ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">
        <WindowHeight>7800</WindowHeight>
        <WindowWidth>12000</WindowWidth>
        <WindowTopX>105</WindowTopX>
        <WindowTopY>105</WindowTopY>
        <ProtectStructure>False</ProtectStructure>
        <ProtectWindows>False</ProtectWindows>
    </ExcelWorkbook>
    <Styles>
        <Style ss:ID="Default" ss:Name="Normal">
            <Alignment ss:Vertical="Top" />
            <Borders />
            <Font ss:FontName="Arial" />
            <Interior />
            <NumberFormat />
            <Protection />
        </Style>
        <Style ss:ID="s63">
            <Alignment ss:Vertical="Bottom" ss:WrapText="1" />
            <Font ss:FontName="Arial" x:Family="Swiss" ss:Bold="1" />
            <Interior ss:Color="#C0C0C0" ss:Pattern="Solid" />
        </Style>
        <Style ss:ID="s64">
            <NumberFormat ss:Format="@" />
        </Style>
    </Styles>
    <Worksheet ss:Name="NDCLabelerCode">
        <Table ss:ExpandedColumnCount="2" ss:ExpandedRowCount="8186" x:FullColumns="1" x:FullRows="1">
            <Column ss:Index="2" ss:Width="580.5" />
            <Row ss:AutoFitHeight="0" ss:Height="38.25">
                <Cell ss:StyleID="s63">
                    <Data ss:Type="String">NDC Labeler Code</Data>
                </Cell>
                <Cell ss:StyleID="s63">
                    <Data ss:Type="String">Firm Name</Data>
                </Cell>
            </Row>
            <Row>
                <Cell ss:StyleID="s64">
                    <Data ss:Type="String">0002</Data>
                </Cell>
                <Cell ss:StyleID="s64">
                    <Data ss:Type="String">Eli Lilly and Company</Data>
                </Cell>
            </Row>
...

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    let xlsDoc = CkoXml()!

    var success: Bool = xlsDoc.loadFile("myFiles/ndc_nhric_labeler_codes_04_29_2015.xls")
    if success != true {
        print("\(xlsDoc.lastErrorText!)")
        return
    }

    // This example will access the following pieces of data:
    // NDC Labeler Code, Firm Name, 0002, Eli Lilly and Company, ...

    // First navigate to the Worksheet named "NDCLabelerCode"
    var xWorksheet: CkoXml? = xlsDoc.getChildWithAttr("Worksheet", attrName: "ss:Name", attrValue: "NDCLabelerCode")

    // Next, get the Table node:
    var x: CkoXml? = xWorksheet!.getChildWithTag("Table")

    // How many immediate child nodes?
    var numChildren: Int = x!.numChildren.intValue

    // Loop over each Row and access the cell contents.
    var i: Int
    for i = 0; i <= (numChildren - 1); i++ {

        // Navigate without creating new XML objects
        success = x!.getChild2(i)

        if x!.tagEquals("Row") {

            var data0: String? = x!.chilkatPath("Cell[0]|Data|*")
            print("\(data0!)")

            var data1: String? = x!.chilkatPath("Cell[1]|Data|*")
            print("\(data1!)")
        }

        // Navigate back up.
        success = x!.getParent2()
    }

    x = nil
    xWorksheet = nil

}