GemBox.Spreadsheet
.NET Excel Library

Read, write, convert, and print XLSX, XLS, XLSB, CSV, HTML, and ODS spreadsheets from .NET applications.

Examples Pricing

Try the Free version now!

static void Main()
{
    // Set license key to use GemBox.Spreadsheet in Free mode.
    SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");

    // Create a new empty Excel file.
    var workbook = new ExcelFile();

    // Create a new worksheet and set cell A1 value to 'Hello world!'.
    workbook.Worksheets.Add("Sheet 1").Cells["A1"].Value = "Hello world!";

    // Save to XLSX file.
    workbook.Save("Spreadsheet.xlsx");
}

Multiple file formats supported Multiple File Formats

Use a single programming interface for multiple file formats: XLSX, XLS, XLSB, ODS, CSV, HTML, PDF, PDF/A, and XPS.

GemBox.Spreadsheet is a standalone .NET library Standalone .NET Library

Not dependent on Microsoft Excel. 100% managed code (C#). Follows .NET class library design guidelines.

Multiple platforms are supported Multiple Platforms

Read, write, view, and edit spreadsheets in .NET, .NET Core, .NET Framework, Mono, and Xamarin.

GemBox.Spreadsheet is C#/VB.NET library with a fast performance Fast Performance

Read and write 1,000,000 rows with less than 256MB RAM and less than 3.5 seconds.

Model manipulation Model Manipulation

Edit sheets, cells, styles and formatting, formulas, images, charts, pivot tables, protection, etc.

High quality rendering and printing High Quality

High quality rendering and printing, formula calculation engine, and more.

GemBox.Spreadsheet is a .NET library that enables you to read, write, convert, and print spreadsheet files (XLSX, XLS, XLSB, CSV, HTML, and ODS) from .NET applications.

With GemBox.Spreadsheet you get a fast and reliable library that's easy to use and doesn't depend on Microsoft Excel. It requires only .NET, and it's much faster than Microsoft Office Automation!

You can download and use the component for free, even for commercial projects. The Professional version, which comes with 12 months of technical support and without limitations, requires a license for every developer.

No server or OEM licenses. Unlimited deployments. We also offer a 30-day money-back guarantee.

GemBox.Spreadsheet FeaturesWMPJPEGTIFFPNGSVGXPSGIFPDFTXTCSVMHTMLODSHTMLXLSBXLTXXLSXLSMXLSXWriteRead & WriteGemBox.SpreadsheetSupportDockerAzureLinux / macOSAndroid / iOSCOMMonoWindows FormsWPFASP.NETASP.NET Core.NET Framework.NET Core

Main library features

If the feature you are looking for is not listed above, please check the examples, or visit our support center where you can vote for missing features.

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Next steps

Try the examples or download GemBox.Spreadsheet for free.

Examples Free Version