How Can I Export a DataTable to Excel in C# Using ClosedXML?

Exporting DataTables to Excel Files in C#

This guide demonstrates how to export data from a DataTable (often linked to a DataGridView) to an Excel file within a C# Windows Forms application. We'll leverage the ClosedXML library for this task.

The Challenge: Efficiently exporting DataTable data to an Excel spreadsheet.

The Solution: Using the ClosedXML library.

Implementation:

Here's the core code snippet:

<code class="language-csharp">using ClosedXML.Excel;

// ... other code ...

XLWorkbook workbook = new XLWorkbook();
DataTable dataTable = GetDataTableOrWhatever(); // Replace with your DataTable retrieval method
workbook.Worksheets.Add(dataTable, "Sheet1"); // "Sheet1" is the sheet name
workbook.SaveAs("exported_data.xlsx"); // Save the Excel file</code>

Why ClosedXML?

ClosedXML offers several key advantages:

• Clean Code: The library promotes clear, readable code.
• Active Community: A responsive and helpful developer community ensures ongoing support.
• Continuous Development: The project is actively maintained and updated.
• Thorough Documentation: Comprehensive documentation simplifies the learning curve.

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