convert excel xls xlsx to csv csharp

Comma Separated Values (CSV) are widely used to store and share data, and many datasets are available in CSV format. At the same time, Excel spreadsheets in XLS and XLSX formats are commonly used to organize data in a tabular form. In many cases, to process the Excel data programmatically, it must first be converted into CSV format. In this article, you’ll learn how to convert an Excel file to CSV in C# using Aspose.Cells for .NET.

C# Excel to CSV Converter - Free Download

To convert XLS and XLSX files to CSV, we will use Aspose.Cells for .NET. This feature-rich API lets you create, manipulate, and process Excel files seamlessly. It also allows you to convert Excel files to various other file formats, including CSV. If you’re looking for methods like C# Export XLSX or C# Convert XLSX to CSV without Excel, this library has you covered.

Install the Aspose.Cells library via NuGet:

Install-Package Aspose.Cells

Convert Excel to CSV using C#

This is the simplest scenario where you load an Excel file and convert it directly to CSV:

Convert Each Worksheet to a Separate CSV File using C#

If your Excel file contains multiple worksheets and you need each one as a separate CSV file, you can iterate through the worksheets and save them individually. This approach is useful for users who need to convert XLS to CSV efficiently.

Convert Excel to CSV with Custom Delimiters using C#

In some cases, you might want a CSV file with a custom delimiter (like a semicolon or a tab) instead of the default comma. This example shows how you can set up a custom delimiter during the conversion. For example, you can use methods to convert XLS to XLSX using C# or adjust delimiters as needed.

Conclusion

In this article, we explored several scenarios for converting Excel files (both XLS and XLSX) to CSV format using C# with Aspose.Cells for .NET. Whether you’re converting the entire workbook, each individual worksheet, or need to customize the CSV delimiter, these examples are designed to help you integrate these solutions into your development projects smoothly. If you want to learn how to convert XLS to XLSX in C#, these methods can be particularly useful.

Convert Excel files to CSV without evaluation limitations by obtaining a free temporary license.

Happy coding!

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