Installation

Installation

This guide walks you through installing Aspose.Cells FOSS for .NET and verifying that the library is working in your project.

Prerequisites

Step 1 — Add the NuGet Package

Run the following command in your project directory:

dotnet add package Aspose.Cells_FOSS

Alternatively, install through the Visual Studio Package Manager Console:

Install-Package Aspose.Cells_FOSS

Or add the package reference directly to your .csproj file:

<PackageReference Include="Aspose.Cells_FOSS" Version="*" />

Step 2 — Add the Using Directive

At the top of any C# file that uses the library, add:

using Aspose.Cells_FOSS;

Step 3 — Verify the Installation

Create a small test program to confirm the library loads and produces a valid XLSX file:

using Aspose.Cells_FOSS;

var workbook = new Workbook();
var sheet = workbook.Worksheets[0];

sheet.Cells["A1"].PutValue("Hello from Aspose.Cells FOSS");
sheet.Cells["B1"].PutValue(42);
sheet.Cells["C1"].Formula = "=B1*2";

workbook.Save("verify.xlsx");

var loaded = new Workbook("verify.xlsx");
Console.WriteLine(loaded.Worksheets[0].Cells["A1"].StringValue);
Console.WriteLine(loaded.Worksheets[0].Cells["C1"].StringValue);

Expected output:

Hello from Aspose.Cells FOSS
84

If the file is written and both values print correctly, the installation is complete.

Next Steps

• Quick Start — Create your first spreadsheet with formulas, styles, and multiple worksheets
• Developer Guide — In-depth tutorials covering all major feature areas
• KB Articles — Task-oriented how-to guides