How to generate reports in PowerPoint presentations for data from database?

// Open presentation by using Essential Presentation.
IPresentation presentation = Presentation.Open("Sample.pptx");
int count = 0;
//Export the date from excel to Presentation
foreach (DataTable splittedDataTable in dataTables)
{
if (count == 1)
break;
ExportToPresentation(presentation, splittedDataTable);
count++;
}
//Add slide to the PowerPoint presentation
ISlide slide = presentation.Slides[0];
//Get the excel file as stream
Stream stream = new FileStream("Microsoft_Excel_Worksheet.xlsx", FileMode.Open);
stream.Position = 0;
//Create a chart for the date in excel file within A1:F6 data range
IPresentationChart columnChart = slide.Charts.AddChart(stream, 1, "A1:F6", new RectangleF(30.96F, 15.12F, 350.64F, 227.52F));
stream.Position = 0;
//Create a chart for the date in excel file within A7:D12 data range
IPresentationChart pieChart = slide.Charts.AddChart(stream, 1, "A7:D12", new RectangleF(30.96F, 289.44F, 350.64F, 227.52F));
//Set the chart type as Pie.
pieChart.ChartType = Syncfusion.OfficeChart.OfficeChartType.Pie;
//Dispose the stream
stream.Dispose();
//Save the presentation
presentation.Save("Presentation.pptx");
///<Summary>
///Exports the values in data table to PowerPoint tables.
///</Summary>
private static void ExportToPresentation(IPresentation presentation, DataTable dataTable)
{
//Add slide to the presentation document.
ISlide slide = presentation.Slides[0];
//Add table to the slide. The height of the table will grow per the content height by default
ITable table = slide.Tables.AddTable(dataTable.Rows.Count, dataTable.Columns.Count 1, 416.16, 101.28, 500.2, 165.36);
//Disable the header row property
table.HasHeaderRow = true;
int rowIndex = 0;
int colIndex = 0;
//Add data to the table in presentation from the DataTable instance
foreach (DataRow row in dataTable.Rows)
{
foreach (object val in row.ItemArray)
{
ICell cell = table[rowIndex, colIndex];
cell.TextBody.AddParagraph(val.ToString());
colIndex++;
if (colIndex == 5)
break;
}
colIndex = 0;
rowIndex++;
}
}