Localization

Updated on Aug 6, 2026

To change the default English localization provider you should use the CurrentProvider static property of the SpreadsheetLocalizationProvider class. For example, you can load the string from a XML file like this:

C#

public void FileProvider()
{
    SpreadsheetLocalizationProvider.CurrentProvider = SpreadsheetLocalizationProvider.FromFile(@"C:\SpreadSheedStringsFile");
}

VB.NET

    Public Sub FileProvider()
        SpreadsheetLocalizationProvider.CurrentProvider = SpreadsheetLocalizationProvider.FromFile("C:\SpreadSheedStringsFile")
    End Sub

You can download a XML file that contains all the currently used strings from here: Strings file

SpreadsheetLocalizationProvider contains all strings related to the RadSpreadsheetRibbonBar as well.

AI Assistant Localization Strings

The following table lists all localization strings used by the AI Assistant feature:

Localization String	Default Value
Spreadsheet_AI_AuthorName	Spreadsheet AI
Spreadsheet_AI_WelcomeMessage	Hello! I am your AI assistant. Ask me anything about this spreadsheet.
Spreadsheet_AI_ProviderNotConfigured	AI provider is not configured. Please set the AIToolsProvider property.
Spreadsheet_AI_InputBoxWatermark	Ask me anything...
Spreadsheet_AI_ThinkingWatermark	AI is thinking...
Spreadsheet_AI_ErrorProcessingRequest	An error occurred while processing your request.

Custom Localization Provider

Another approach is to create a custom localization provider class which inherits SpreadsheetLocalizationProvider. In it you should just override the GetLocalizedString method and return the localized string depending on current id.

C#

public class MySpreadsheetLocalizationProvider : SpreadsheetLocalizationProvider
{
    public override string GetLocalizedString(string id)
    {
        switch (id)
        {
            //----------------------
            case "Spreadsheet_Workbook":
                return "Spreadsheet Workbook";
           //----------------------
        }
        return base.GetLocalizedString(id);
    }
}

VB.NET

Public Class MySpreadsheetLocalizationProvider
    Inherits SpreadsheetLocalizationProvider

    Public Overrides Function GetLocalizedString(ByVal id As String) As String
        Select Case id
                '----------------------
            Case "Spreadsheet_Workbook"
                Return "Spreadsheet Workbook"
                '----------------------
        End Select
        Return MyBase.GetLocalizedString(id)
    End Function
End Class

The following code snippet shows how you can use the new class:

C#

public Localization()
{
    SpreadsheetLocalizationProvider.CurrentProvider = new MySpreadsheetLocalizationProvider();
    InitializeComponent();
}

VB.NET

    Public Sub New()
        SpreadsheetLocalizationProvider.CurrentProvider = New MySpreadsheetLocalizationProvider()
        InitializeComponent()
    End Sub

It is necessary to set the SpreadsheetLocalizationProvider. CurrentProvider property before initializing the components.