Signed License

Below is the code necessary to activate SpreadsheetGear.

SpreadsheetGear.Factory.SetSignedLicense("YOUR SIGNED LICENSE HERE");

Next Steps

A Signed License is a string that is generated from either the Licensed User and Evaluation Download pages and is passed into the SpreadsheetGear.Factory.SetSignedLicense(...) method to activate the unlimited mode for any of our NuGet-distributed products*. Without activation these products operate in a limited free mode.

*Only SpreadsheetGear products that are distributed on NuGet require activation with a Signed License:

The following products do not use the Signed License activation mechanism and instead have separate Licensed and Evaluation installers that can be downloaded from the Licensed User and Evaluation Download pages with your License Number:

  • SpreadsheetGear for .NET Framework
Licensed Users

If you are already a licensed user of a SpreadsheetGear product that uses a Signed License for activation, you can use the License Number provided to you at purchase time to generate a Signed License string from the Licensed User Downloads page.

Evaluators

If you would like to evaluate SpreadsheetGear, you can generate a free 30-day Signed Trial License by visiting the Evaluation Downloads page.

The Signed License mechanism activates multiple SpreadsheetGear products distributed on NuGet:

The below examples will use SpreadsheetGear Engine for .NET for demonstration purposes. Please change the package name if you will be working with another product.

Visual Studio Package Manager UI
Using Visual Studio, open the Package Manager Window for the .NET Project that you want to add SpreadsheetGear to, navigate to the 'Browse' tab, search for the SpreadsheetGear product you are interested in and click on the 'Install' button to add a reference to it.
.NET CLI
Open a terminal, navigate to the folder of the .NET project you want to add SpreadsheetGear to and run the following command:
dotnet add package SpreadsheetGear
Package Manager Console
Open Visual Studio's Package Manager Console, ensure the desired .NET project you want to add SpreadsheetGear to is selected from the 'Default project' dropdown and run the following command:
Install-Package SpreadsheetGear

Add the above SpreadsheetGear.Factory.SetSignedLicense(...) line of code somewhere in the initialization phase of your application—where it will get called only once and before any IWorkbook or IWorkbookSet objects have been created.

For instance, in an ASP.NET Core Web App you might place this in your Program.cs file or Startup class; or in most other application types near the beginning of the Main(...) method.

Purchase SpreadsheetGear products from the Purchase Page to immediately download and activate the fully-licensed and unlimited modes of the products. Please Contact Us if you have any questions.

Visit the below support resources to get started with SpreadsheetGear:
Evaluation Downloads Licensed User Downloads Purchase SpreadsheetGear