Localization
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:
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.
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.
The following code snippet shows how you can use the new class:
It is necessary to set the SpreadsheetLocalizationProvider. CurrentProvider property before initializing the components.