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Merge branch 'hotfix/hotfix-v32.1.19' into 991692-Sunburst
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‎Document-Processing-toc.html‎

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<a href="/document-processing/pdf/pdf-library/net/working-with-JavaScript">Working with JavaScript</a>
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</li>
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<li>
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<a href="/document-processing/pdf/pdf-library/net/Performance-Metrics">Performance Metrics</a>
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<a href="/document-processing/pdf/pdf-library/net/performance-metrics">Performance Metrics</a>
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</li>
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<li>
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FAQ
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</ul>
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</li>
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<li>
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<a href="/document-processing/pdf/pdf-library/javascript/Overview">JavaScript</a>
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<ul>
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<a href="/document-processing/pdf/pdf-library/javascript/Overview">JavaScript</a>
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<ul>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Overview">Overview</a></li>
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<li>Getting Started
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<ul>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Create-PDF-document-javascript">JavaScript</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Create-PDF-document-typescript">TypeScript</a></li>
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</ul>
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</li>
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</li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Open-and-save-PDF-files">Loading and Saving</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/PDF-document">PDF Document</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/PDF-pages">PDF Pages</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Text-Extraction">Text Extraction</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Image-Extraction">Image Extraction</a></li>
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<li><a href="/document-processing/pdf/pdf-library/javascript/Redaction">Redaction</a></li>
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</ul>
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</li>
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</ul>
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</li>
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<li>
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<a href="/document-processing/pdf/pdf-library/flutter/overview">Flutter</a>
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<ul>
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<a href="/document-processing/pdf/conversions/html-to-pdf/net/features">Features</a>
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</li>
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<li>
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<a href="/document-processing/pdf/conversions/html-to-pdf/net/Performance-Metrics">Performance Metrics</a>
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<a href="/document-processing/pdf/conversions/html-to-pdf/net/performance-metrics">Performance Metrics</a>
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</li>
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<li>
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<a href="/document-processing/pdf/conversions/html-to-pdf/net/advanced-installation">Advanced Installation</a>
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<li><a href="/document-processing/excel/spreadsheet/angular/filter">Filtering</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/sort">Sorting</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/link">Hyperlink</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/comment">Comment</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/notes">Notes</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/clipboard">Clipboard</a></li>
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<li><a href="/document-processing/excel/spreadsheet/angular/selection">Selection</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/filter">Filtering</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/sort">Sorting</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/link">Hyperlink</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/comment">Comment</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/notes">Notes</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/clipboard">Clipboard</a></li>
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<li><a href="/document-processing/excel/spreadsheet/javascript-es6/selection">Selection</a></li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/how-to-set-the-first-item-in-a-list-as-the-default-selected-value-in-an-Excel-file">How to set the first item in a list as the default value in an Excel?</a>
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</li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/how-to-perform-a-clean-installation-of-a-NuGet-package-from-a-local-source">How to perform a clean installation of a NuGet package from a local source?</a>
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</li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/how-to-get-the-column-color">How to get the column color when column cells have different colors?</a>
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</li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/how-to-preserve-leading-zeros-when-importing-data-to-excel">How to preserve leading zeros when importing DataTable to Excel?</a>
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</li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/how-to-retrieve-the-first-cell-in-the-used-range-in-Excel">How to retrieve the first cell in the used range in Excel?</a>
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</li>
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<li>
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<a href="/document-processing/excel/excel-library/net/faqs/does-xlsio-support-changing-the-colors-of-built-in-icon-sets">Does XlsIO support changing the colors of built-in icon sets?</a>
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</li>
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</ul>
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</li>
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</ul>
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<ul>
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<li>
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2025 Volume 4 - v32.*
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<ul>
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<ul><li> Weekly Nuget Release <ul><li><a href="/document-processing/release-notes/v32.1.21">v32.1.21</a></li><li><a href="/document-processing/release-notes/v32.1.20">v32.1.20</a></li></ul></li>
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<li><a href="/document-processing/release-notes/v32.1.19">v32.1.19 Main release</a></li>
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</ul>
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‎Document-Processing/Excel/Conversions/Chart-to-Image/NET/Chart-to-Image-Conversion.md‎

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{% highlight c# tabtitle="C# [Cross-platform]" playgroundButtonLink="https://raw.githubusercontent.com/SyncfusionExamples/XlsIO-Examples/master/Chart%20to%20Image/Chart%20to%20Image/.NET/Chart%20to%20Image/Chart%20to%20Image/Program.cs,180" %}
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using (ExcelEngine excelEngine = new ExcelEngine())
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{
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IApplication application = excelEngine.Excel;
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application.DefaultVersion = ExcelVersion.Xlsx;
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//Initialize application
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IApplication application = excelEngine.Excel;
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//Set the default version as Xlsx
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application.DefaultVersion = ExcelVersion.Xlsx;
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// Initialize XlsIORenderer
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application.XlsIORenderer = new XlsIORenderer();
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//Initialize XlsIORenderer
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application.XlsIORenderer = new XlsIORenderer();
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//Set converter chart image format to PNG
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application.XlsIORenderer.ChartRenderingOptions.ImageFormat = ExportImageFormat.Png;
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//Set converter chart image format to PNG or JPEG
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application.XlsIORenderer.ChartRenderingOptions.ImageFormat = ExportImageFormat.Png;
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FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputTemplate.xlsx"), FileMode.Open, FileAccess.Read);
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IWorkbook workbook = application.Workbooks.Open(inputStream);
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IWorksheet worksheet = workbook.Worksheets[0];
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//Set the chart image quality to best
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application.XlsIORenderer.ChartRenderingOptions.ScalingMode = ScalingMode.Best;
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IChart chart = worksheet.Charts[0];
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//Open existing workbook with chart
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FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputTemplate.xlsx"), FileMode.Open, FileAccess.Read);
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IWorkbook workbook = application.Workbooks.Open(inputStream);
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IWorksheet worksheet = workbook.Worksheets[0];
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//Access the chart from the worksheet
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IChart chart = worksheet.Charts[0];
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#region Save
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//Saving the workbook
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FileStream outputStream = new FileStream(Path.GetFullPath("Output/Image.png"), FileMode.Create, FileAccess.Write);
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chart.SaveAsImage(outputStream);
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#endregion
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#region Save
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//Exporting the chart as image
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FileStream outputStream = new FileStream(Path.GetFullPath("Output/Image.png"), FileMode.Create, FileAccess.Write);
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chart.SaveAsImage(outputStream);
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#endregion
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//Dispose streams
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outputStream.Dispose();
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inputStream.Dispose();
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//Dispose streams
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outputStream.Dispose();
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inputStream.Dispose();
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}
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{% endhighlight %}
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‎Document-Processing/Excel/Conversions/Excel-to-PDF/NET/Performance-Metrics.md‎

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---
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title: Performance Metrics for the Syncfusion Excel to PDF conversion
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description: This section provides benchmark results and performance metrics for converting Excel files to PDF using the Syncfusion Excel (XlsIO) library.
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platform: document-processing
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control: XlsIO
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documentation: UG
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---
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# Performance Metrics for Excel to PDF Conversion
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The following benchmark demonstrates the performance of the Syncfusion Excel (XlsIO) library when converting a large Excel workbook—containing 100,000 rows and 50 columns with distinct data types such as text, date and time, numbers, booleans, and formulas—into a PDF.
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<table>
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<tr>
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<th>Data type</th>
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<th>Time Taken (sec)</th>
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<th>Sample Link</th>
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</tr>
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<tr>
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<td>Text</td>
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<td>121</td>
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<td><a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF/String%20Data%20Type/.NET/String%20Data%20Type">GitHub page</a></td>
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</tr>
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<tr>
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<td>DateTime</td>
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<td>112</td>
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<td><a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF/DateTime%20Data%20Type/.NET/DateTime%20Data%20Type">GitHub page</a></td>
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</tr>
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<tr>
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<td>Number</td>
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<td>107</td>
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<td><a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF/Number%20Data%20Type/.NET/Number%20Data%20Type">GitHub page</a></td>
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</tr>
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<tr>
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<td>Boolean</td>
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<td>83</td>
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<td><a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF/Boolean%20Data%20Type/.NET/Boolean%20Data%20Type">GitHub page</a></td>
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</tr>
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<tr>
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<td>Formula</td>
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<td>104</td>
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<td><a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF/Formula%20Data%20Type/.NET/Formula%20Data%20Type">GitHub page</a></td>
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</tr>
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</table>
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You can find the sample used for Excel to PDF conversion performance evaluation on <a href="https://github.com/SyncfusionExamples/XlsIO-Examples/tree/master/Performance%20Metrics/Excel%20to%20PDF">this GitHub page</a>.

‎Document-Processing/Excel/Excel-Library/NET/Import-Export/Import-to-Excel.md‎

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N> XlsIO imports the data from data table into Excel worksheet based on the data table column type. So, it is suggested to create the data tables with required column types such as number, text or date time before importing the data table to Excel worksheet.
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### Preserve Data Types
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To preserve data types when importing a DataTable into an Excel worksheet, set the **preserveTypes** parameter of the <a href="https://help.syncfusion.com/cr/document-processing/Syncfusion.XlsIO.IWorksheet.html#Syncfusion_XlsIO_IWorksheet_ImportDataTable_System_Data_DataTable_System_Boolean_System_Int32_System_Int32_System_Boolean_">ImportDataTable</a> method to **true**.
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{% tabs %}
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{% highlight c# tabtitle="C# [Cross-platform]" %}
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worksheet.ImportDataTable(table, false, 1, 1, true); // preserveTypes = true
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{% endhighlight %}
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{% highlight c# tabtitle="C# [Windows-specific]" %}
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worksheet.ImportDataTable(table, false, 1, 1, true); // preserveTypes = true
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{% endhighlight %}
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{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}
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worksheet.ImportDataTable(table, False, 1, 1, True) ' preserveTypes = True
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{% endhighlight %}
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{% endtabs %}
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## DataColumn to Excel
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The following code example illustrates how to import DataColumn into an Excel using [ImportDataColumn](https://help.syncfusion.com/cr/document-processing/Syncfusion.XlsIO.IWorksheet.html#Syncfusion_XlsIO_IWorksheet_ImportDataColumn_System_Data_DataColumn_System_Boolean_System_Int32_System_Int32_) method.
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workbook.SaveAs("Output.xlsx")
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End Using
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{% endhighlight %}
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{% endtabs %}
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{% endtabs %}

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