''' <summary>
''' Creates the DOCX document with chart.
''' </summary>
''' <param name="resultFilePath">The result file path.</param>
Public Shared Sub CreateDocxWithChart(resultFilePath As String)
    ' path to a template DOCX document with chart
    Dim templateDocDocumentPath As String = "Chart.docx"

    ' create DOCX document editor on template document with chart
    Using docxDocumentEditor As New Vintasoft.Imaging.Office.OpenXml.Editor.Docx.DocxDocumentEditor(templateDocDocumentPath)
        ' get chart
        Dim chart As Vintasoft.Imaging.Office.OpenXml.Editor.OpenXmlDocumentChart = docxDocumentEditor.Charts(0)


        ' change chart title

        ' find title
        chart.Title = "Chart Title Example. " & System.DateTime.Now.ToShortDateString()


        ' change chart data

        ' create the chart data
        Dim chartData As System.Nullable(Of Double)(,) = New System.Nullable(Of Double)(,) {{55, 32, 23}, {84, 48, 33}, {72, 53, 86}, {34, 82, 11}}
        ' change the chart data
        chart.ChartData.SetData(chartData)


        ' save changes
        docxDocumentEditor.Save(resultFilePath)
    End Using
End Sub

/// <summary>
/// Creates the DOCX document with chart.
/// </summary>
/// <param name="resultFilePath">The result file path.</param>
public static void CreateDocxWithChart(string resultFilePath)
{
    // path to a template DOCX document with chart
    string templateDocDocumentPath = "Chart.docx";

    // create DOCX document editor on template document with chart
    using (Vintasoft.Imaging.Office.OpenXml.Editor.Docx.DocxDocumentEditor docxDocumentEditor =
        new Vintasoft.Imaging.Office.OpenXml.Editor.Docx.DocxDocumentEditor(templateDocDocumentPath))
    {
        // get chart
        Vintasoft.Imaging.Office.OpenXml.Editor.OpenXmlDocumentChart chart = docxDocumentEditor.Charts[0];


        // change chart title

        // find title
        chart.Title = "Chart Title Example. " + System.DateTime.Now.ToShortDateString();


        // change chart data

        // create the chart data
        double?[,] chartData = new double?[,] {
             { 55, 32, 23 },
             { 84, 48, 33 },
             { 72, 53, 86 },
             { 34, 82, 11 } };
        // change the chart data
        chart.ChartData.SetData(chartData);


        // save changes
        docxDocumentEditor.Save(resultFilePath);
    }
}