Create XLSX File in C#

Create XLSX File Using C#

How to create XLSX file? With Aspose.Cells for .NET library, you can easily create XLSX file 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.

PM> Install-Package Aspose.Cells

How to Create XLSX in C#

It is easy for the developers to create, load, modify and convert XLSX files within running different reporting applications for data processing in just a few lines of code.

1. Include the namespace in your class file
2. Create Workbook class instance.
3. Access the first worksheet of the workbook.
4. Get the desired cell(s) of the worksheet and input the value into the cell(s).
5. Use Save method to save the workbook as XLSX file.

// Create Workbook class instance.
Workbook wkb = new Workbook();

// Access the first worksheet of the workbook.
Worksheet sht = wkb.Worksheets[0];

// Get the desired cell(s) of the worksheet.
Cell c00 = sht.Cells["A1"];
Cell c01 = sht.Cells["B1"];
Cell c10 = sht.Cells["A2"];
Cell c11 = sht.Cells["B2"];

// input the value into the cell(s).
c00.PutValue("ColumnA");
c01.PutValue("ColumnB");
c10.PutValue("ValueA");
c11.PutValue("ValueB");

// Save the Workbook as .xlsx file.
wkb.Save("created_one.xlsx");

C# library to create XLSX file

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.