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Convert CSV to XLSX in C#

High-speed C# library for converting CSV to XLSX. This is a professional software solution to import and export CSV, XLSX, and many other formats on .NET Framework, .NET Core or Mono Platforms.

Convert CSV to XLSX Using C#

How do I convert CSV to XLSX? With Aspose.Cells for .NET library, you can easily convert CSV to XLSX programmatically with a few lines of code. Aspose.Cells for .NET is capable of building cross-platform applications with the ability to generate, modify, convert, render and print all Excel files. .NET Excel API not only convert between spreadsheet formats, it can also render Excel files as images, PDF, HTML, ODS, CSV, SVG, JSON, WORD, PPT and more, thus making it a perfect choice to exchange documents in industry-standard formats. Open NuGet package manager, search for Aspose.Cells and install. You may also use the following command from the Package Manager Console.

Package Manager Console Command


PM> Install-Package Aspose.Cells

Save CSV to XLSX in C#

The following example demonstrates how to convert CSV to XLSX in C#.

Follow the easy steps to convert CSV to XLSX. Upload your CSV file, then simply save it as XLSX file. For both CSV reading and XLSX writing you can use fully qualified filenames. The output XLSX content and formatting will be identical to the original CSV document.

Sample Code to Convert CSV to XLSX
Input file
Select format
   
                                   
    
	
  using Aspose.Cells;     
  var workbook = new Workbook("Input.xlsx");
  workbook.Save("Output.pdf");
	                
                
            

How to Convert CSV to XLSX via C#

Need to convert CSV files to XLSX programmatically? .NET developers can easily load & convert CSV to XLSX in just a few lines of code.

  1. Install ‘Aspose.Cells for .NET’.
  2. Add a library reference (import the library) to your C# project.
  3. Load CSV file with an instance of Workbook.
  4. Convert CSV to XLSX by calling Workbook.Save method.
  5. Get the conversion result of CSV to XLSX.

C# library to convert CSV to XLSX

There are two alternative options to install “Aspose.Cells for .NET” onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:

  1. Install a NuGet Package . See Documentation
  2. Install the library using Package Manager Console within Visual Studio IDE

System Requirements

Before running the .NET conversion example code, make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET, .NET Core, Windows Azure or Mono Platforms..
  • Development environment like Microsoft Visual Studio.
  • Add reference to the Aspose.Cells for .NET DLL in your project.

CSV What is CSV File Format?

Files with .csv (Comma Separated Values) extension represent plain text files that contain records of data with comma separated values. Each line in a CSV file is a new record from the set of records contained in the file. Such files are generated when data transfer is intended from one storage system to another. Since all applications can recognize records separated by comma, import of such data files to database is done very conveniently. Almost all spreadsheet applications such as Microsoft Excel or OpenOffice Calc can import CSV without much effort. Data imported from such files is arranged in cells of a spreadsheet for representation to user.

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XLSX What is XLSX File Format?

XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

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Other Supported Conversions

You can also convert CSV to many other file formats including few listed below.

CSV TO BMP (Bitmap Image)
CSV TO EMF (Enhanced Metafile Format)
CSV TO GIF (Graphical Interchange Format)
CSV TO HTML (Hyper Text Markup Language)
CSV TO MD (Markdown Language)
CSV TO MHTML (Web Page Archive Format)
CSV TO ODS (OpenDocument Spreadsheet File)
CSV TO PDF (Portable Document Format)
CSV TO PNG (Portable Network Graphics)
CSV TO SVG (Scalable Vector Graphics)
CSV TO TIFF (Tagged Image Format)
CSV TO TSV (Tab-Separated Values)
CSV TO TXT (Text Document)
CSV TO XLS (Excel Binary Format)
CSV TO XLSB (Binary Excel Workbook File)
CSV TO XLSM (Spreadsheet File)
CSV TO XLSX (OOXML Excel File)
CSV TO XLT (Microsoft Excel Template)
CSV TO XLTM (Excel Macro-enabled Template)
CSV TO XLTX (Office OpenXML Excel Template)
CSV TO XML (Extensible Markup Language)
CSV TO XPS (XML Paper Specifications)
CSV TO JSON (JavaScript Object Notation)